6 th Grade SPI: 0606.4.4 Calculate with circumferences and areas of circles.
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6 th Grade SPI: 0606.4.4 Calculate with circumferences and areas of circles.
description
CIRCUMFERENCE. 6 th Grade SPI: 0606.4.4 Calculate with circumferences and areas of circles. The circumference of a circle is. The distance around a circle. Hint: Circumference remember circle around. First we must define some things about a circle. - PowerPoint PPT Presentation
Transcript of 6 th Grade SPI: 0606.4.4 Calculate with circumferences and areas of circles.
The circumference of a circle is
The distance around a circle
Hint: Circumference remember circle around
First we must define some things about a circle.
The radius is the distance from the center of a circle to any point on a
circle.
Hint: I like to define it as halfway through!
Two formulas are used in finding the circumference of a
circle.
Circumference = d 3.14 x 4in.
12.6in.
WHEN THE CIRCLE HAS A DIAMETER MEASUREMENT, USE THE FOLLOWING FORMULA.
4in.
Circumference = 2 r
When the radius of a circle is given, the following formula
should be used.
2 x 3.14 x 5cm
31.4cm
HINT: Always round your answers to the
nearest tenth.