Question

1. Find the surface area of the rectangular prism.

60 in^2
84 in^2
26 in^2
52 in^2

Answer 1

http://www.math.com/tables/geometry/surfareas.htm

Answer 2

Find the area of all sides and add them together. Let's start with the front and back.
4*3 = 12. Since this is the front and back, you can multiply that by 2.

Answer 3

Do 4*2=8 for the two sides, left and right.

Answer 4

Top and bottom are 2*3=6.

Answer 5

Multiply 8 and 6 by 2.

Answer 6

Then add all of this together.
This is the simpler way, in my opinion, to the formula.

Answer 7

I got 96 when I multiply 8 and 6 by 2 '.' ?

Answer 8

The formula for the surface area of a rectangular prism is:
A= 2(wl+hl+hw)
where w is the width, l is the length and h is the height of rectangle.
simply substitute values in this formula and you'll get the result. The answer is 52 sq. inches

Answer 9

No, you do 8+8+6+6+12+12=52
I just explained it a bit wrong.

Answer 10

For the formula, w=3, l=2, and h=4.
Technically these are interchangeable.
SA=2(3*2 + 4*2 + 4*3)
Multiply the individual numbers first then distribute the 2.

Answer 11

Find the surface area of the cylinder. Use 3.14 for pi.

100.48 cm^2
97.43 cm^2
36.28 cm^2
33.14 cm^2