Answer:
184
Step-by-step explanation:
hope this helps!! :D
1. Area of triangle
1/2(10)(12)=60
There are two triangles, so multiply by 2
=120
2. Find area of the rectangles
This is an isosceles triangle, so the two rectangles are congruent
(2)(13)(3)=78
3. Find area of bottom rectangle
10(3)= 30
4. Add everything up
120+ 78 + 30= 228
Therefore the surface area of this prism is 228
I hope i helped :)
I think its 8? someone correct me if im wrong.
Answer:
11/2
Step-by-step explanation:

when,

Now substitute the value we get,
