Which questions can be answered by finding the surface area? Check all that apply.
How much paint is needed to paint the outside of a birdhouse?
How much wallpaper is needed to cover the walls of your room?
How much water will it take to fill a rectangular container?
How much topsoil can a gardener place in his wheelbarrow?
How much fabric is needed to make a pillowcase for a pillow?

How much wallpaper is needed to cover the walls of your room?

How much fabric is needed to make a pillowcase for a pillow?

Step-by-step explanation:

Surface area is the total area of a two dimensional surface.

#How much paint is needed to paint the outside of a birdhouse?

-Amount of paint to be used is a capacity measurement,volume, not surface area.Not Applicable.

#How much wallpaper is needed to cover the walls of your room?

The walls total surface area is a two dimensional measurement. Applicable.

#How much water will it take to fill a rectangular container?

Volume of water is a three dimensional capacity measurement. Not Applicable.

#How much topsoil can a gardener place in his wheelbarrow?

Amount of soil needed is a volume measurement and not surface area. Not Applicable.

#How much fabric is needed to make a pillowcase for a pillow?

Amount of material is a two dimensional measurement hence surface area. Yes, Applicable.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.