Spheres

Question 1

What is the volume of the viewing room?

Revolt · Accepted Answer

9,216π cubic feet

Question 2

✔ 244896

Revolt · Accepted Answer

✔ 24

Question 3

576✔ 1,1521,7284,608

Revolt · Accepted Answer

✔ 1,152

Question 4

✔ 1,7282,3042,8806,912

Revolt · Accepted Answer

✔ 1,728

Question 5

7✔ 1428

Revolt · Accepted Answer

✔ 14

Question 6

98✔ 147196

Revolt · Accepted Answer

✔ 147

Question 7

Which statements about Jennet’s work are true? Check all that apply.

Revolt · Accepted Answer

She correctly determined the radius.; The circumference should be π cm.

Question 8

A glass dome for a lighting fixture is in the shape of a hemisphere. The circumference of the great circle of the hemisphere is 12π inches. Which statements about the hemisphere are true? Check all that apply.The radius is 6 inches.The total surface area is 108π square inches.The radius is 12 inches.The total surface area is 144π square inches.The total surface area is 432π square inches.The total surface area is 36π square inches.

Revolt · Accepted Answer

The radius is 6 inches.; The total surface area is 108π square inches.

Question 9

A company manufactures exercise balls for gyms. Type A is a spherical ball with a radius of 12 inches. Type B is a hemisphere that will remain stationary when placed on its base. The radius of the hemisphere is also 12 inches. What is the ratio of the surface area of the sphere to the surface area of the hemisphere?

Revolt · Accepted Answer

4 : 3

Spheres Answers

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