Area and Circumference

What is the formula for area of a circle?

• A = π×r²
• A = 2×π×r

Tags

CCSS.7.G.B.4

What is the formula for Circumference?

• C = π×r²
• C = 2×π×r

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18 in
• 10 in
• 9 in
• 8 in

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

• 3.5 m
• 3 m
• 5 m
• 7 m

Tags

CCSS.7.G.B.4

What is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

Tags

CCSS.7.G.B.4

Find the area of the circle below.

• 100 cm²
• 225 cm²
• 9 cm²
• 28.26 cm²

Tags

CCSS.7.G.B.4

Find the area of the circle

• 56.52 in²
• 254.34 in²
• 1017.36 in²
• 113.04 in²

Tags

CCSS.7.G.B.4

Find the circumference (to the nearest whole number)

• 88 in
• 44 in
• 116 square in
• None of the above

Tags

CCSS.7.G.B.4

what is the area of this semicircle ?

• 100.48cm²
• 80cm²
• 200.96cm²
• none of the above

Tags

CCSS.7.G.B.4

Jayne has a rather large circular lollipop that has a circumference of 25.12 inches. What is the diameter of Jayne’s lollipop? Use π = 3.14.

• 4 in.
• 8 in.
• 12 in.
• 16 in.

Tags

CCSS.7.G.B.4