Surface Area and Slant Height

Find the total surface area of a cone with a radius of 7 inches and a slant height of 11 inches. Round to the nearest tenth.

• 259.7 in²

• 241.9 in²

• 153.9 in²

• 395.8 in²

What is the surface area of this composite figure?

• 60π cm ²

• 45π cm ²

• 57π cm ²

• 48π cm ²

Find the total surface area of the cylinder. Don't forget to divide the diameter by 2 to get the radius. Round to the nearest tenth.

• 25.13 square cm

• 75.40 square cm

• 50.27 square cm

• 100.53 square cm

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?

• 94.3 in.²

• 172.8 in.²

• 50 in.²

• 22.5 in.²

What is surface area?

• The distance around the outside of a two-dimensional figure

• The number of square units in a two-dimensional figure

• The number of cubic units needed to fill a three-dimensional figure.

• The sum of the areas of all surfaces on a three-dimensional figure

Find the surface area of the triangular pyramid.

• 123.6 sq. feet

• 116.8 sq. feet

• 127.9 sq. feet

• 130.9 sq. feet

What is the surface area of this triangular pyramid?

• 198.9 sq. inches

• 205.6 sq. inches

• 187.9 sq. inches

• 210.6 sq. inches

Find the total surface area of the following triangular pyramid. Each triangle is congruent, with a base of 7 ft. and a height of 6ft.

• 168 ft²

• 126 ft²

• 84 ft²

• 42 ft²

What is the surface area of the triangular pyramid?

• 105.9

• 90.3

• 74.7

• 99.6

Find the total surface area of the shape above.

• 140.4

• 280.8

• 105.3

• 210.6