GHSGT Review Day 7 Cell Parts and Functions. Prokaryotes Eukaryotes.
GHSGT Meas/Geometry & Data Analysis Review How to use this review: Play the PPT from the beginning...
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Transcript of GHSGT Meas/Geometry & Data Analysis Review How to use this review: Play the PPT from the beginning...
GHSGT Meas/Geometry & Data Analysis
Review
How to use this review:
Play the PPT from the beginning and try each question. Press ‘Enter’ to determine the correct answer.
Look for boxes that highlight the main idea of the concept.
Return to the SHS GHSGT Prep page to try more review questions.
Pass the FIRST time!
Measurement & Geometry32% - 34% of the test
Most Missed Domain!
“KING HENRY” Metric Measurements• Look at the prefixes
– “Kilo” is going to be large 1 kilometer(km) is a little more than ½ of a mile– “milli” is going to be small mm (about the thickness of a fingernail)
King Henry Died Unexpectedly Drinking Chocolate Milk
Kilo- Hecto- Deka- Unexpectedly (UNIT) (gram/meter/liter) Deci- Cm Milli-
As you move right ,move decimal to the right (# gets smaller)
As you move left, move decimal to left (# gets larger)
7.25 L = ?? kL
Think: go to unit…move left 1, 2, 3… SO move decimal 3 spaces left! 7.25 L = .00725 kL
TemperatureCelsius vs. Fahrenheit
• Celsius: water freezes at 0C and boils at 100 C• Fahrenheit: water freezes at 32F and boils at
212 F• Students have to know Celsius!!!
A riddle to help them remember Celsius:“30 is hot, 20 is nice…
10 is chilly, 0 is ice”
Metric Measurements• Q1: Marvin wants to change Fahrenheit
temperature to Celsius temperature. The formula is If F = 50, what is the temperature in Celsius?A) 90 CB) 162 CC) 10 CD) 5 C
5( 32)
9C F
C) 10 C
Metric Measurements• Q2: ______ would be used to calculate the
capacity of a pot of chili.A) MillilitersB) GramsC) LitersD) Kilograms
C) Liters
Perimeter, Area, and Volume• Perimeter is the distance around
– think fencing in something– Units are whatever you are using to measure
• Area is how much flat space is occupied– Think about painting a wall, wallpaper, grass on a lawn– Always in Square Units
• Volume is how much space is occupied in 3D– Think pouring concrete, how much liquid will go– Always in cubic units.
Perimeter, Area, and Volume
• Q3: What is the area of the blue section?A) 113.34B) 668.304C) 26.5D) 100.77
D) 100.77
3.9
12.3
8.7 1.6
Perimeter, Area, and Volume• Q4 One gallon of paint will cover 800 square feet.
How many gallons of paint are needed to cover a wall that is 8 feet high and 200 feet long? A. ¼B. 2C. 4D. 8
B) 2
Perimeter, Area, and Volume• Q5 Tim has an irregularly shaped garden, as shown
below. What is the area of his garden (in square feet)?
• A. 58 ft2
• B. 174 ft2
• C. 198 ft2
• D. not enough information provided
B) 174 ft2
Transformations
• Reflection means flipThink “mirror”
• Rotation means turn
• Translation means slide
Transformations• Q6:Study Figures I and II. Determine which
transformation, if any, of Figure I is shown in Figure II?
A. rotationB. reflectionC. translationD. no transformation
B) reflection
Coordinate Plane• Ordered Pairs (x, y)
– the first number tells you how far left or right to go from the origin
– The second number tells you how far up or down to go from the origin
• Quadrants– The x-axis and y-axis break the coordinate plane into 4
Quadrants– Named I, II, III, and IV starting in upper right and
moving counterclockwise.
Coordinate Plane• Q7:Which point shown on the graph below has the
coordinates (2, -2)? A. Point AB. Point BC. Point CD. Point D
C) Point C
Coordinate Plane• Q8: Which of the following indicates the square where Houston’s two universities are located?A. 2,DB. 3,CC. 3,2D. 3,D
D) 3,D
Ratio/ Proportion Word Problems
• Ratio is the comparison of two numbers.• Proportions are when you set two ratio equal to
one another– Be sure to keep units in the same place– To solve, cross multiply
Ratio/ Proportion Word ProblemsQ9: On a map of Georgia, one inch is equivalent to
50 miles (1 inch = 50 miles). If the distance between two towns is 1.75 inches, what is the actual distance between the towns?A. 8.75 milesB. 50.75 milesC. 65 milesD. 87.5 miles
D) 87.5
Angles• Classify
– Acute– Obtuse– Right– Straight
• Special Angle Relationships– Linear Pairs– Vertical Angles– Supplementary– Complementary
Angles• Q10: What is the
measure of MPN? A. 60B. 90C. 180D. 360
C) 180
Angles• Q11: If A and B are complements, and B and C
are complements, what must be true of A and C? A. They have the same measure.B. They are supplementary angles.C. They are complementary angles.D. They are interior angles of a polygon.
A) Same measure
Similar Figures
Are the same shape, but not necessarily same size
Sides are proportional 12 3
4 ?
Similar Figures
• Q12: Find the missing length (x) for the pair of similar figures below.A. 20 cmB. 26 cmC. 30 cmD. 39 cm
B) 26 cm
Similar Figures• Q13: The two right triangles are similar. Find the
measure of side x.A. 32 B. 37.5 C. 55 D. 83
B) 37.5
x
Sum of Interior Angles of a Polygon
• Use 180(n-2), where n is the number of sides in polygon
• Or divide the shape into triangles and multiply the number of triangles by 180 (easiest)
180 X 4 = 720 or180 x ( 6 – 2 ) = 720
1
2
3
4
Sum of Interior Angles of a Polygon• Q14: Sarah's flower garden is in the shape of a
pentagon. What is the sum of the degree measures of the interior angles of her garden? A. 180°B. 720°C. 360°D. 540°
D) 540°
Pythagorean Theorem
• Use only with RIGHT TRIANGLES
• a2 + b2 = c2
– c is the hypotenuse– a & b are legs of the triangle
Pythagorean Theorem• Q15: A square piece of paper, each side four inches
long, is folded diagonally on the dotted line, as shown. To the nearest inch, how long is the crease made in the fold?A. 4 inchesB. 6 inchesC. 8 inchesD. 16 inches
B) 6 inches
4 in
4 in
Pythagorean Theorem• Q16: In the drawing, the length of side a equals 36
inches. The length of side c is 36.5 inches. Which formula would determine the length of side b?A. a2 + b2 = c2
B. c2 a2 = b2
C. a2 b2 = c2
D. a2 + c2 = b2
B) c2 a2 = b2
c
a
b
Parallel Lines• Create Special Angle relationships
– Alternate Interior– Alternate Exterior– Consecutive Interior
• Are divided into proportional parts
Parallel Lines• Q17: James Road and River Road are parallel. What
is the measure of A?A. 70B. 90C. 100D. 110
D) 110
Data Analysis Review17 – 19%
Probability vs. Odds
# of successesProbability is
total # of outcomes# of successes
Odds are # of failures
THIS WAS THE MOST MISSED QUESTION ON THE PRACTICE TEST!!!
If the odds of winning a prize are , then the PROBABILITY of winning is
5
27
2
Most Missed Concept!!
Probability • For compound events, write out all possibilities, then count those
which meet the question’s requirements!• Ex. A spinner has 3 colors: red, yellow, and green. If you spin
twice, what’s the probability of getting the same color both times?• Think:• Red, Red• Red , Blue• Red, Green• Blue, Red• Blue, Blue• Blue, Green• Green, Red• Green, Blue• Green, Green
Most Missed
Concept!!!
3
1
9
3
Probability• Q18: There are five pencils in a box; some are red and
some are blue. The probability of randomly reaching into the box and selecting a red pencil is 3/5. How many blue pencils are in the box?
• A. 1• B. 2• C. 3• D. 5
B) 2
Probability• Q19: Use the tree diagram to predict the
probability of flipping three coins and getting all heads or all tails.
• A. ¼• B. ½ • C. 1• D. 2
A) ¼
Mean, Median, Mode, Range
• Mean- Average• Median- Middle
–PUT IN ORDER FIRST• Mode- occurs the MOST• Range- Highest minus Lowest
Mean, Median, Mode, Range• Q20: The youngest person in an audience of 600 people is
thirteen years old. The range of ages is forty-five years. Which is the age of the oldest member of the audience?
• A. 32 years• B. 45 years• C. 46 years• D. 58 years
D) 58 years
Mean, Median, Mode, Range• Q21: Helen spent a total of $100 for five shirts.
Later she bought another shirt. She spent an average of $18.78 per shirt for the six shirts. What did Helen pay for the sixth shirt?
• A. $12.68• B. $16.67• C. $20.00• D. $38.78
A) $12.68
Graphs • Circle- typically with %
• Bar- show highest & lowest, distinct categories
• Line graphs- trends, increases and decreases
• Pictographs- distinct categories
Graphs• Q22: The results of a poll asking, "Who is your favorite math
teacher?" are shown:Dr. Jones 20% Ms. Towner 23%
• Ms. Cleaveland 32% undecided 25%
• Which type of graph should be used to show the results of the poll?
• A. bar graph• B. circle graph• C. line graph• D. pictograph
B) circle
Venn Diagrams • You need to know how
to interpret these.• For example, which
section represents students who play football and basketball, but NOT baseball?
Baseball
Basketball
Football
Venn Diagrams• Q23: Mr. Mangione, constructed a
diagram to illustrate the skills of applicants for positions in the office of his company. How many applicants possess word processing, basic accounting, and marketing skills?
• A. 5• B. 10• C. 15• D. 20
A) 5
Note:
This PPT was trimmed from an original document on the web by Hillgrove HS in Cobb County, GA, and additions have been made.
The original home of the PPT is:http://www.cobbk12.org/schools/Hillgrove/GHSGT%20REVEIWS/Math%20GHSGT.htm