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WorksheetsP1 10.5 Surface Area of Pyramids and Cones
Total questions: 13
Worksheet time: 35mins
How do you find the total surface area of a cone?
πrl
πrl+πr2
21Pl
21Pl+B
Find the surface area of each figure.
a
b
c
d
A paper party hat, like the one shown, has a slant height of 6 inches and a radius of 5 inches. How many square inches of cardboard would be needed to create this hat?
94.25 in.2
172.79 in.2
50 in.2
22.5 in.2
Find the surface area of the figure.
Round your answer to the nearest hundredth.
542.87 mm2
271. 44 mm2
221.06 mm2
442.12 mm2
Find the total surface area of the figure.
353.43 mm2
833.67 mm2
176.7 mm2
566.76 mm2
What does the l in the cone and pyramid surface area formulas represent?
Slant Height
Height
Length
Perimeter
Both the pyramid and cone have a what?
Slant height
Circular base
Triangular base
Rectangular face
How do you find the total surface area of a pyramid?
πrl
πrl+πr2
21Pl
21Pl+B
Find the surface area of each figure.
a
b
c
d
What is the height of the base of this triangular pyramid?
198.9 sq. inches
9 inches
13 inches
7.8 inches
What is the total surface area of the pyramid? Round to the nearest hundredth.
1,024.01 square units
809.54 square units
1,065.54 square units
1,179.02 square units
