1. Chapter 12 Extra Review
Round everything to the nearest tenth. To find the solutions. Either remove the textbox over the answer or review the PowerPoint in presentation mode.

2. Question 1 What is the cross section parallel to the base? Solution
Square

3. Question 2
A cylindrical can of soup has a height of 40 mm and 2.4 times the radius of another cylindrical can with the same height. If the volume of the smaller container is 160𝜋 𝑚𝑚 3 , what is the radius of the larger container?
Solution
4.8 mm

4. Question 3
Find the area of the base of a regular pentagonal prism with the side length of 8 ft.
Solution
𝐴=110 𝑓𝑡 2

5. Question 4 Find the surface area of the composite figure. Solution7
Solution
1082 25 15

6. Question 5 Find the lateral area of the composite figure. Solution 532
13 cm
4 cm
10 cm
12 cm
Solution
532

7. Question 6
Which shape has the greater volume, a cylinder with a radius of 10 cm and height of 13 cm or a square pyramid with the length of the base 10 cm and slant height 13 cm.
Solution
Cylinder

8. Question 7
Find the surface area of the cone.
Solution
46.5 𝑐𝑚 2

9. Question 8
If the circumference of the great circle is 62π, what is the surface area of the sphere.
Solution

10. Question 9 Find the surface area of the rectangular pyramid. 5 mm
Solution
𝑚𝑚 2
14 mm

11. Question 10 Find the volume of the composite figure. Solution
13 cm
4 cm
10 cm
12 cm
Solution
𝑐𝑚 3

12. Question 11
Find the height of a square prism with a side length of 5 ft. and a volume of 58 𝑓𝑡 2 .
Solution
h = 2.3

13. Question 12
Ms. Partington is wrapping a present for Ms. Dorgan. Given the information below, how much wrapping paper should she use to cover the present?
Solution
8 ft
208 𝑓𝑡 2
4 ft
6 ft

14. Question 13 Find the volume of the cone. 22 cm Solution 1373.9 𝑐𝑚 3
𝑐𝑚 3
16 cm

15. Question 14 Find the volume of the pyramid. 5 mm Solution 326.7 𝑚𝑚 3
𝑚𝑚 3
14 mm

16. Question 15 Find the volume of the cylinder. Solution 1373.9 𝑐𝑚 3
9 yds
Solution
𝑐𝑚 3
14 yds