Circumference and Area

Find the circumference of the circle:

• 314

• 628

• 31.4

• 62.8

Tags

CCSS.7.G.B.4

• 452.16

• 113.04

• 18.84

• 37.68

Tags

CCSS.7.G.B.4

What is the area of the circle?

• 15.7 cm²

• 78.5 cm²

• 31.4 cm²

• 5 cm²

Tags

CCSS.7.G.B.4

What is the circumference of the circle?

• 25.12 in.

• 12.56 in.

• 50.24 in.

Tags

CCSS.7.G.B.4

Find the area of the rectangle.

• 24 ft²

• 12 ft²

• 32 ft²

• 89 ft²

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Find the area of the trapezoid.

• 108 cm sq

• 60 cm

• 432 cm sq

• 216 cm sq

Tags

CCSS.6.G.A.1

What is the area of a square with a side length of 4 cm?

• 16 cm

• 16 square cm

• 8 cm

• 8 square cm

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the formula for area of a circle?

• C=πd

• C=πd²

• A=πr²

• A= C/d

Tags

CCSS.7.G.B.4

What is Circumference?

• π

• The distance around the outside of a circle

• The amount of space on the inside of a circle

Sally tried to solve for the area of circle. Her work is shown. What mistake did Sally make.

• Sally squared π incorrectly.

• Sally multiplied the π and radius incorrectly.

• Sally used diameter instead of the radius.

• No mistake. Sally solved the problem correctly.

Tags

CCSS.7.G.B.4