Question

Find the surface area and volume of the composite figure

Answer 1

A = 19.3 yd²

V = 5.412 yd³

Explanation:

The surface area:

`2\cdot(2.4\cdot1.8+\frac12\cdot2.4\cdot0.5)+2\cdot1.8\cdot1.1+2\cdot1.3\cdot1.1+2.4\cdot1.1\\\\=2\cdot(4.32+0.6)+3.6\cdot1.1+2.6\cdot1.1+2.64\\\\=9.84+3.96+2.86+2.64=19.3\ yd^2`

The volume:

`(2.4\cdot1.8+\frac12\cdot2.4\cdot0.5)\cdot1.1=4.92\cdot1.1=5.412\ yd^3`