1 Answer

Mollwe · Answer 1 · 2020-08-03T04:25:57+0000

Answer:

3 + 3 + 12 + 8 + 8

Explanation:

We have:

two triangles with base b = 6 and height h = 1

two rectangles with length l = 4 and width w = 2

one reactangel with length l = 6 and width w = 2.

The formula of an area of a triangle:

A_T=(bh)/(2)

Substitute:

A_T=((6)(1))/(2)=3

The formula of an area of a rectangle:

A_R=lw

Substitute:

$A_(R_1)=(4)(2)=8\\\\A_(R_2)=(6)(2)=12$

The surface area of the prism:

S.A.=A_T+A_T+A_(R_1)+A_(R_1)+A_(R_2)

S.A.=3+3+8+8+12