geometry questions? please answer?

1. Which of the following is a situation where finding the surface area would be appropriate?

a. Determining how much water is needed to fill a rectangular tank.

b. Determining how much paint is needed to paint the walls of your bedroom.

c. Determining how much stucco is needed to stucco the walls and roof of a building.

d. Determining how much paint is needed to entirely paint a pyramid-shaped ornament.

Question 2

What is the lateral area of a rectangular prism if the base edges are 8 feet and 6 feet and the height is 10 feet?

a 48 ft2

b. 240 ft2

c. 280 ft2

d. 480 ft2

Question 3

What is the lateral area of a triangular prism with base edges all equaling 2 millimeters and a height of 7 millimeters?

a 7 mm2

b 14 mm2

c 28 mm2

d 42 mm2

Question 4

A triangular prism has an equilateral triangle as its base with sides that measure 3 feet and a height of 6 feet. What is the surface area of this prism if the height of the prism is 4 feet?

a 54 ft2

b 62 ft2

c 72 ft2

d 96 ft2

Question 5

A square pyramid has a slant height of 17 inches and a height of 15 inches. What is its surface area if the square base has sides of length 16 inches?

a 224 in2

b 800 in2

c 864 in2

d 480 in2

Question 7

The height of an equilateral rectangular prism decreases by two units. The new lateral area is less than the original by how much?

a two times the area of the base

b two times the perimeter of the base

c two less than the the area of the base

d two less than the perimeter of the base