Surface Area

Question 1

Which three-dimensional figures have lateral faces that are polygons? Check all that apply.conescylindershemispheresprismspyramidsspheres

Revolt · Accepted Answer

cylinders; prisms; pyramids

Question 2

510✔ 5060

Revolt · Accepted Answer

✔ 50

Question 3

355060✔ 75

Revolt · Accepted Answer

✔ 75

Question 4

A right pyramid with a regular hexagon base has a height of 3 units.

Revolt · Accepted Answer

✔ 3; If a side of the hexagon is 6 units long, then the apothem is √3 units long.: 3; The slant height is the hypotenuse of a right triangle formed with the apothem and the .: height of the pyramid; Using the Pythagorean theorem c = to find the slant height results in a slant height of units.: 6; The lateral area is square units.: 108

Question 5

area of the basebase length✔ height of the pyramidperimeter

Revolt · Accepted Answer

✔ height of the pyramid

Question 6

3✔ 6818

Revolt · Accepted Answer

✔ 6

Question 7

654✔ 108216

Revolt · Accepted Answer

✔ 108

Question 8

A jumbo crayon is composed of a cylinder with a conical tip. The cylinder is 12 cm tall with a radius of 1.5 cm, and the cone has a slant height of 2 cm and a radius of 1 cm.

Revolt · Accepted Answer

The lateral area of the cone is π cm2.: 2; To wrap paper around the entire lateral surface of the cylinder, π cm2 of paper is needed.: 36; The surface area, including the bottom base of the crayon, is π cm2.: 41.5

Question 9

1224✔ 36360

Revolt · Accepted Answer

✔ 36

Question 10

40✔ 41.542.543.5

Revolt · Accepted Answer

✔ 41.5

Surface Area Answers

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