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Congruent Figures Section 4-1. Solve each equation. 1.x + 6 = 252.x + 7 + 13 = 33 3.5x = 5404.x + 10...
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Transcript of Congruent Figures Section 4-1. Solve each equation. 1.x + 6 = 252.x + 7 + 13 = 33 3.5x = 5404.x + 10...
Congruent Figures
Section 4-1
Solve each equation.
1.x + 6 = 25 2. x + 7 + 13 = 33
3.5x = 540 4. x + 10 = 2x
5.For the triangle at the right, use the Triangle
Angle-Sum Theorem to find the value of y.
Congruent figures have the same ______________ and _______________.
When two figures are congruent, you can move one so that it fits exactly on the other one.
Three ways to make such a move are a _____________, a _____________, or a ________________.
Discovery Learning:
1. Draw a shape on your paper.
2. Cut it out. Trace the original shape on the paper again.
3. Flip/slide/rotate the shape and trace it.
4. Draw both the original shape and the “new” shape on the board.
5. As a class, figure out how each shape was flipped/slid/rotated.
________________ have congruent corresponding parts -matching ___________ and ___________.
When you name congruent
polygons, always list
corresponding vertices
in the same order.
Write a statement of triangle congruence.B
C D
AF
D H
ZP
R
Pg 183 #16-25 together
In Exercises 1 and 2, quadrilateral WASH quadrilateral NOTE.
1. List the congruent corresponding parts.
2. mO = mT = 90 and mH = 36. Find mN.
3. Write a statement of triangle congruence.
4. Write a statement of triangle congruence.
5. Explain your reasoning in Exercise 4 above.
Homework:
Pg 183 #3 - 14, 29