Area and Circumference of Circles Challenge

Find the area of the circle below.

• 113.04 cm units²

• 18.84 cm units²

• 9 cm units²

• 28.26 cm units²

Tags

CCSS.7.G.B.4

Find the circumference of the circle

• 21.98

• 153.86

• 43.96

• 615.44

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

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft

Tags

CCSS.7.G.B.4

• 25.12 inches

• 12.56 inches

• 50.24 inches

• 31.4 inches

Tags

CCSS.7.G.B.4

This formula is used to find what?

• Area

• Circumference

Tags

CCSS.7.G.B.4

A circular mirror has a 2 inch frame around it. The mirror itself is 8 inches in diameter. What is the area of the frame? Use 3.14 for pi.

Tags

CCSS.7.G.B.4

Identify the parts of the circle and show how you would find the area and circumference.

Groups:

(a) radius

,

(b) diameter

,

(c) circumference

,

(d) area

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 8322.13

• 1134.11

• 4536.46

• 1267.09

Tags

CCSS.7.G.B.4

Ms. Merine calculated that her hoop earring has a diameter of 3.5 centimeters. What is the area of her earring (round to the hundreth's place)?

• 9.25 cm²

• 9.62 cm²

• 9.15 cm²

• 9.99 cm²

Tags

CCSS.7.G.B.4