Question

Find the surface area of the pyramid shown to the nearest whole number.

7.
72 ft2
128 ft2
56 ft2
22 ft2

8.
1,300 m2
390 m2
650 m2
628 m2

9. Find the slant height x of the pyramid shown, to the nearest tenth.
4.35 mm
9.2 mm
6.9 mm
3.6 mm

10. Find the surface area of the cone to the nearest tenth.
132 cm2
138 cm2
490.1 cm2
867.1 cm2

11. Find the slant height of the cone to the nearest whole number.
20 m
22 m
21 m
19 m

Answer 1

7. 72 ft2

8.650 m2

9. Find the slant height x of the pyramid shown, to the nearest tenth.
6.9 mm

10. Find the surface area of the cone to the nearest tenth.
490.1 cm2

11. Find the slant height of the cone to the nearest whole number.
19 m

Answer 2

1. Use Euler's Formula to find the missing number.

Vertices: 14
Edges: 36
Faces: ? (1 point)
(1 pt) 24
(0 pts) 25
(0 pts) 23
(0 pts) 27
1 /1 point
2. Pierre built the model shown in the diagram below for a social studies project. He wants to be able to show the inside of his model, so he sliced the figure as shown. Describe the cross section he created.

(1 point)
(0 pts) hexagon
(1 pt) pentagon
(0 pts) pyramid
(0 pts) rectangle
1 /1 point
3. Use formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number. Use the large 12 x 7 m rectangles on the top and bottom as the bases.


(1 point)
(1 pt) 76 m2; 244 m2
(0 pts) 76 m2; 160 m2
(0 pts) 216 m2; 160 m2
(0 pts) 216 m2; 244 m2
1 /1 point
4. Use formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number.

(1 point)
(0 pts) 645 m2; 779 m2
(1 pt) 671 m2; 725 m2
(0 pts) 645 m2; 725 m2
(0 pts) 671 m2; 698 m2
0 /1 point
5. Find the surface area of the cylinder in terms of .

(1 point)
(1 pt) 216 in.2
(0 pts) 144 in.2
(0 pts) 432 in.2
(0 pts) 168 in.2
1 /1 point
For problems 6–7, find the surface area of the pyramid shown to the nearest whole number.
6.
(1 point)
(1 pt) 72 ft2
(0 pts) 128 ft2
(0 pts) 56 ft2
(0 pts) 22 ft2
1 /1 point
7. (1 point)
(0 pts) 1,300 m2
(0 pts) 390 m2
(1 pt) 650 m2
(0 pts) 628 m2
0 /1 point
8. Find the slant height x of the pyramid shown, to the nearest tenth.
(1 point)
(0 pts) 4.35 mm
(0 pts) 9.2 mm
(1 pt) 6.9 mm
(0 pts) 3.6 mm
1 /1 point
9. Find the slant height of the cone to the nearest whole number.
(1 point)
(0 pts) 20 m
(0 pts) 22 m
(0 pts) 21 m
(1 pt) 19 m
0 /1 point
10. The lateral area of a cone is 500 cm2. The radius is 50 cm. Find the slant height to the nearest tenth. (1 point)
(1 pt) 10 cm
(0 pts) 9.1 cm
(0 pts) 14.2 cm
(0 pts) 11.2 cm
1 /1 point

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