Question

Find the total surface area of this prism where

the cross-section is an isosceles triangle.
​

Answer 1

620 sq.cm

Solution,

Total surface Area( T.S.A)

= 2 * two inclined rectangles+ 2* two triangles + rectangular base

`= 2(10 * 13) + 2( (1)/(2) * 24 * 5) + 24 * 10 \\ = 2 * 130 + 2 * 60 + 240 \\ = 260 + 120 + 240 \\ = 620 \: {cm}^(2)`

Hope this helps...

Good luck on your assignment..