Question

find the lateral surface area and total surface area of triangular prism​

Answer 1

Step-by-step explanation:

now the the prism is made up of 2 triangles , 4 rectangles ..

so, CSA = area of figure except base

= 8×15 + 5×15 + 1/2(6)(4) + 1/2(6)(4)

= 120+75+12+12

CSA = 219cm²..

TSA = CSA + area of excluded base

= 219 + 6×15

= 219 + 90

= 309cm²..