Question

Can someone guide me through finding the surface area for this please?
A bit confused

http://prntscr.com/74kcwv

Answer 1

ok

Answer 2

hmmmmmmm

Answer 3

lateral or total?

Answer 4

notice, the picture here
the prism is just 3 rectangles and 2 triangles, stacked up to each other at the edges

thus, get the area of all 5 shapes, sum them up
and that'd be the area of the prism

Answer 5

Well, I know you need to find the lateral area, then insert it into:
S.A. = L.A. + 2B
But I'm confused on finding both of those, cx

Answer 6

and to find the area of the two triangles you can use pythagroean theorum to find the third side, then do what @jdoe0001 said or


Find the perimeter of the triangle and multiply by height to get lateral aurface area then add the area of the two bases

Answer 7

Oh, I didn't think of that, Pythagoream Theorem cx

Answer 8

So it would be a legnth of 3in?

Answer 9

correct

Answer 10

then (base x height)/2 for area

Answer 11

So...
A = 1/2 b * h
A = 1/2 4 * 3
A = 2 * 3
A = 6
6*2 = 12
^ For both triangles
Right?

Answer 12

How do we find the L.A.?

Answer 13

yes now to find LA you would find the perimeter of the triangle then multiply by the height of the prism

Answer 14

it is technically adding up the area of all the faces represented differently

Answer 15

http://prntscr.com/74kgae

Answer 16

Soo...
12 * 8 = L.A.?
96 + 2(6)
96+12=108
S.A. = 108in^2?

Answer 17

yes that is correct :)

Answer 18

Thank You c:
Kind of Slept during class
Couldn't absorb any of the material cx
Thanks for helping me understand! c:

Answer 19

=]

Answer 20

Dan, do I have to pay you Owlbucks? cx