Math 9
Review of Surface Area
MOM (Atlantic) Page 383 – 385
Worksheet 4-5b
Name ____________
4. One cone has a base radius of 4 cm and a height of 3 cm. Another cone has a base radius
of 3 cm and a height of 4 cm. Do you think their total surface areas are the same? If not,
which one do you think has the greater total surface area? Prove your answer.
5. Determine the total surface area of each pyramid. Give answer to 1 decimal place.
8 Determine the area of the curved surface of each cone. Give the answer to 1 decimal
place where necessary.
9 Determine the surface area of each tetrahedron to 1 decimal place.
10 Determine the total surface area of each cone. Give the answer to 1 decimal place where
necessary.
11 Determine the surface area of each pyramid.
12 Determine the surface area to 1 decimal place for each of the following.
a) a square base with side length 5.5 cm, triangular faces with height 8.4 cm.
b) a rectangular base 12.00 cm by 7.50 cm, the triangular face on the longer side with
height 14.25 cm, the triangular face on the shorter side with height 15.00 cm.
13. A cone and a cube have these given dimensions
Cone: 42 cm high, diameter 21 cm
Cube: side lengths 0.15 m.
Which object has the greater surface area?
14. Find the surface area.
a) cylinder, radius 11.8 cm, height 15.0 cm
b) cylinder, diameter 2.0 m, height 0.50 m
c) cone, radius 3.7 cm, slant height 6.4 cm
d) cone, radius 22.2 cm, slant height 25.0 cm