12.1k views
10 votes
Find the surface area of the composite solid.

Find the surface area of the composite solid.-example-1

2 Answers

5 votes
281 ft. I took the test today, I hope you get a good grade!!
User Remi Guan
by
8.8k points
7 votes

Answer:

281 ft^2

Explanation:

We need to add each individual 2d shape together to find the surface area

Bottom: 5*12 = 60

Left side and right side: 4*5 = 20, 2 sides so 20*2= 40

Side facing us and side facing away from us: 12*4 = 48, 2 sides so 48*2=96

Top side that is cut by base of triangle: 7*5 = 35

Each triangle face: base = 5 (12-7), height = 5 1/2base * height so each triangle is .5*5*5 = 12.5; 4 triangles so 12.5*4=50

60+40+96+35+50=281

User Ewhitt
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories