Semi Circle and Circle

what is the formula for finding area of a circle

• C = π r²

• A = π r²

• A = π r² / 2

• C = 2 π r

Tags

CCSS.7.G.B.4

find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm

Tags

CCSS.7.G.B.4

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet? Leave in terms of π.

• 2π

• 8π

• 10π

• 4π

Tags

CCSS.7.G.B.4

Steven purchases a bowl. The diameter of the
bowl is 14 cm. What is the circumference of the 
bowl?

• 28 cm

• 43.98 cm

• 87.96 cm

• 7 cm

Tags

CCSS.7.G.B.4

The distance from any point on the outside of a circle to the center of the circle is called what?

• Diameter

• Circumference

• Area

• Radius

Tags

CCSS.HSG.C.A.2

The distance across a circle through the center is called what?

• Area

• Diameter

• Circumference

• Radius

Tags

CCSS.HSG.C.A.2

If the radius of a circle is 4 inches, what is the diameter?

• 2 inches

• 2 feet

• 4 inches

• 8 inches

Tags

CCSS.7.G.B.4

How do you find the area of a circle?

Tags

CCSS.7.G.B.4

• 452.39 cm

• 452.16 cm

• 75.36 cm

• 75.40 cm

Tags

CCSS.7.G.B.4

A bicycle tire has a diameter of 27 inches. What is the radius?

• 27pi

• 13.5

• 81

• 25pi

Tags

CCSS.7.G.B.4