Question

I need help with this I don't understand this

Answer 1

45.8

Explanation:

We need to find the surface area for this entire figure!

We can see that this is a pyramid here - we must find the area of the 3 triangles and the base triangle at the bottom.

The 3 triangles building up the pyramid are all equal to each other.

To find the area of a triangle, use
`Area = base*height/2`

`Area=3((5*7)/(3) )+((5*4.3)/(2))\\Area=35+10.75=45.75`

Round to the nearest tenth: 45.75 -> 45.8