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18-05-2021
Mathematics

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Find the total surface area of the 3D figure:
ft2
9 ft
8 ft
6 ft
8 ft
8 ft

Find the total surface area of the 3D figure ft2 9 ft 8 ft 6 ft 8 ft 8 ft class=

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Аноним Аноним

18-05-2021

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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