Circles and Spheres Area and Circumference

A semicircle opening above the entrance at Six Flags has a diameter of 15 feet.  What is the area of this opening?  Round to the nearest tenth.

• 706.5 square feet

• 47.1 square feet

• 88.3 square feet

• 176.6 square feet

Tags

CCSS.7.G.B.4

Find the composite area.

• 72.12

• 146.24

• 96

• 121.12

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

What is the radius?

• 18

• 72

• 38

• 14

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

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

What is the area of this circle?

• 6082.12

• 1519.76

• 1893.14

• 1292.92

Tags

CCSS.7.G.B.4