Question

What is the surface area of the prism?



A.
82 yd2

B.
90 yd2

C.
96 yd2

D.
108 yd2

Answer 1

@LegendarySadist

Answer 2

http://lv.k12.com/mediaFiles/Ninth_Grade/Math/Unit17866/Lesson69401/VHS_PA_S2_05_L211_L311_LQ_Q2.gif

Answer 3

So the trick to right angle prisms is to just do it as if it were a rectangular prism and then divide the solution by 2.

Answer 4

???????????

Answer 5

So treat it as if it were a rectangular prism. I'll draw out the triangle side so you can understand where I'm coming from.

Answer 6

When you solve for the area of a triangle, you're actually solving for the area of a hypothetical rectangle and then halving it to get the triangle. We're using the same concept for the surface area.

Answer 7

Here is the triangle side of the figure you have. I drew it out and then doubled it to make a rectangle. I'd like you to solve for the area and perimeter of the drawing I attached.

Answer 8

72?

Answer 9

Hello?

Answer 10

Ok, so let's go through this step by step. First thing to do is solve this: Rectangular prism with length of 4, width of 3, and height of 5. Can you solve this?

Answer 11

What si the formula again lol is it 2*b+P*H

Answer 12

is*

Answer 13

Yes, that is the formula

Answer 14

2*12+20*5

Answer 15

The perimeter would just be 2(4) + 2(3) = 14 so 2*12 + 14*7. (The height should be 7 not 5, mess up on my part there)

Answer 16

Ok so the answer is 122/2=61

Answer 17

Ok, almost there. 61 is the answer of the surface area except for the hypotenuse are. So just find the length of the hypotenuse and multiply it by the length of the rectangle.

Answer 18

What the!?! what is the hypotenuse???

Answer 19

I dont get it! UGH I CANT DO THIS!

Answer 20

Look at the figure. The hypotenuse should be 5.

Answer 21

5*5=10 so 10

Answer 22

5*length of rectangle. The length of the rectangle is 7 so its 5*7=35. Now add 61 to 35 to get the answer.

Answer 23

C.

Answer 24

yes, the answer is C