Find the total surface area of the 3D figure:
ft2
9 ft
8 ft
6 ft
8 ft
8 ft
1 answer:
Answer:
a = 132 ft^2
Step-by-step explanation:
Area of triangle
a = (1/2)bh
---------------------------
Base
a = (1/2)(8)(6)
a = 24 ft^2
----------------------
Each side
a= (1/2)*(8)(9)
a = 36
All three sides
a = 36 * 3
a = 108 ft^2
-----------------------
Total area
a = 24 + 108
a = 132 ft^2
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