 QUIZ
Changing Dimensions--SA, V
4 years ago by 15 questions
Q. If all the edges of a prism are multiplied by 5, then the volume of the prism will be multiplied by ___.
5
25
50
125
Q. If a spherical ball is enlarged so that its surface area in 9 times greater than its original surface area, then the original radius was multiplied by ____.
1
3
9
27
Q. Two cones are similar.  One cone has a radius of 12 inches, while the larger cone has a radius of 20 inches.  The volume of the larger cone is 20,000 cubic inches.  What is the volume of the small cone?
12,000 cubic inches
8000 cubic inches
7200 cubic inches
4320 cubic inches
Q. Each edge of pyramid is multiplied by ⅔.  Then the surface area of the new pyramid will be _____ times larger than the original pyramid.
2/3
3/2
4/9
8/27
Q. The edges of a cube are all reduced by a factor of ½.  So the surface area will be reduced by a factor of _____.
¼
½
Q. The surface area of a pyramid is 12 cm2.  A new pyramid is similar to the original pyramid and the ratio of the sides of the new to the original is 3:2.  What is the surface area of the new pyramid?
12 cm2
8 cm2
18 cm2
27 cm2
Q. When a cube is tripled in size, then the volume is _______.
81 times larger
27 times larger
9 times larger
3 times larger Q. All the dimensions of this prism are reduced by the 1/3. What is the volume of new prism in cm³?
18 cm³
36 cm³
12 cm³
6 cm³ Q. If this circle is dilated by the scale factor of 2, what would be the new area in cm²?
48 cm²
24 cm²
6 cm²
36 cm²
Q. The volume of a prism is 80 in3.  If each edge is divided by 2 to make a new prism, then the new volume will be _______.
80 in3
40 in3
20 in3
10 in3
Q. When you double the radius of a sphere, the volume ____
increases by 8 times
increases by 6 times
increases by 4 times
increases by 27 times
Q. What happens to the perimeter of a square if the sides are    halved?
doubles
halved
forthed Q.

If you multiply each dimension by 6, then what is the effect on the surface area?

The surface area is multiplied by 36.

The surface area stays the same.

The surface area is multiplied by 6

The surface area is multiplied by 216.

Q.

If all the edges of a pyramid are multiplied by 4, what is the effect on the volume?

The volume is 4 times greater.

The volume is 16 times greater.

The volume is 32 times greater.

The volume is 64 times greater.

Q.

A model of a backyard cylindrical pool has a volume of  $1620\pi$  cubic inches.  If all of the dimensions of the real pool are 10 times larger than the model, what will the volume of the real pool be?

$1620000\pi$  cubic inches
$162000\pi$  cubic inches
$1000$   cubic inches
$16200\pi$  cubic inches 