Area - Rectangle, Triangle, Circle

What is the formula for finding the area of a circle?

• A = π·d

• C = 2·π·r

• A = π·r²

• C = π·d

Tags

CCSS.7.G.B.4

What does A represent in the formula:

A = π·r²

• Area

• Radius

• Pi

• Diameter

Tags

CCSS.7.G.B.4

What does r represent in the formula:

A = π·r²

• circumference

• radius

• diameter

• squared

Tags

CCSS.7.G.B.4

What number does π represent?

• 4.13

• 3.41

• pie

• 3.14

Tags

CCSS.HSG.GMD.A.1

What is the radius of a circle?

• halfway across the circle

• a line across the entire center of a circle

• the amount of space inside of the circle

• the distance around a circle

What is the symbol for pi?

• #

• π

• &

• %

Tags

CCSS.HSG.GMD.A.1

Find the area of the circle.

• 12.56 cm²

• 25.12 cm²

• 50.24 cm²

• 200.96 cm²

Tags

CCSS.7.G.B.4

Find the area of the circle.

• 176.6 cm²

• 706.5 cm²

• 23.6 cm²

• 50.24 cm²

Tags

CCSS.7.G.B.4

What is the area of the rectangle?

• 42 square cm
• 40 square cm
• 40 cm
• 42 cm

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Find the area of the rectangle.

• 40 square cm
• 45 square cm
• 36 cm
• 36 square cm

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3