Question

I need help with finding the surface area of the rectangular prism (below)

A = 4x^2 +12
B = 3x^2-6
C = 2x^2-2

Answer 1

It is defiantly not drawn to scale xD Anyway, here are my answer choices:

A) 9x^2 + 4
B) 12x^2 + 20
C) 14x^2 + 12
D) 18x^2 + 8

Answer 2

Just faind the area of A, B, and C. Multiply that by two. The product is your answer.

Answer 3

I don't understand

Answer 4

What is the area of face A?

Answer 5

Is 4x^2 + 12 the area?

Answer 6

What are the dimensions of it (the base and height)?

Answer 7

I think C is the height and B is the base. Am I right?

Answer 8

@eyesnapper

Answer 9

@freckles

Answer 10

there are two faces that have area A
there are two faces that have area B
there are two faces that have area C

So @XxStudyingStuffxX said to find the surface area just add up all the face's areas
you will have A+B+C+A+B+C
or 2A+2B+2C
or 2(A+B+C)

Answer 11

The dimensions are A = 4x^2 +12, B = 3x^2-6, and C = 2x^2-2.

Answer 12

So D!

Answer 13

Thanks a lot both of you!

Answer 14

No problem.

Answer 15

@XxStudyingStuffxX Could you medal freckeles I'll medal you!

Answer 16

I did.

Answer 17

lol I just realized! Thanks!

Answer 18

Close the question when you are done.

Answer 19

yeah :)