circles

What is the diameter of this circle?

• 7 cm

• 10 cm

• 14 cm

• 21 cm

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 9 in

• 18 in

• 12 in

• 27 in

Tags

CCSS.7.G.B.4

The stained glass window is a semicircle. What is the distance around the window? Use 3.14 for pi.

• 40.82 inches

• 66.82 inches

• 81.64 inches

• 107.64 inches

Tags

CCSS.7.G.B.4

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

Tags

CCSS.7.G.B.4

what is the area of this semicircle if the diameter is 8 cm? Use 3.14 for pi.

• 25.12cm

• 50.27cm

• 200.96cm

• none of the above

Tags

CCSS.7.G.B.4

Ms. Catall is using a compass to find her way out of the woods. The compass has a radius of 4 centimeters. What is the compass's area?

• 49.2 cm²
• 45.6 cm²
• 50.24 cm²
• 55.9 cm²

Tags

CCSS.7.G.B.4

Alex has trained his puppy, Zoey, 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

The diameter of a quarter is 24.26 mm. What is closest to the circumference of the outer edge of the quarter? Use 3.14 for Pi.

• 76.18 mm

• 38.01 mm

• 463 mm

• 1,848 mm

Tags

CCSS.7.G.B.4

A dog is leashed up to a peg at the center of the backyard. If the length of the rope is 18.3 m (radius), what will be the maximum area the dog can walk around?

• 1051.6 m²

• 57.5 m²

• 75.76 m²

• 4206 m²

Tags

CCSS.7.G.B.4

what is the formula for finding diameter

• r = 2 d

• d = 2 r

• a = m c²

• c = π 2 r

Tags

CCSS.7.G.B.4