Math 7 Unit 3 Circles

A circle has radius 50 cm. Which of these is closest to its area?

• 157 cm²

• 314 cm²

• 7,854 cm²

• 15,708 cm²

Tags

CCSS.7.G.B.4

Select all the expressions that correctly calculate the perimeter of the shape.

Tags

CCSS.3.MD.D.8

• True

• False

Tags

CCSS.7.G.B.4

• True

• False

Tags

CCSS.7.G.B.4

• True

• False

Tags

CCSS.7.G.B.4

• True

• False

Tags

CCSS.7.G.B.4

• True

• False

Tags

CCSS.7.G.B.4

• True

• False

Tags

CCSS.7.G.B.4

A class measured the radius and circumference of various circular objects. The results are plotted on the graph. Does there appear to be a proportional relationship between the radius and circumference of a circle?

• Yes

• No

Tags

CCSS.7.G.B.4

Why might the measured radii and circumferences not be exactly proportional?