Question

Find the Volume and total surface area of the given figure with base of equilateral triangle:

Answer 1

Step-by-step explanation:

Volume of the given object = cross sectional area × length

cross sectional area = 1/2*13*11

=> 71.5 sq ft

therefore V = CSA × L

=> V = 71.5 × 15

=> V = 1072.5 cu ft

TSA = perimeter of triangular base × length + 2 × area of base

=> TSA = (13×3) × 15 + 2 × (1/2*13*11)

=> TSA = 39 × 15 + 2 × 71.5

=> TSA = 585 + 143

=> TSA = 728 sq ft