abdayemmia abdayemmia

02-08-2022
Mathematics

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find the surface area of composite figure. use 3.14 for π. round to the nearest tenth

find the surface area of composite figure use 314 for π round to the nearest tenth class=

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djp6182583 djp6182583

02-08-2022

Answer:

334 in^2.

Step-by-step explanation:

The surface area = area of the top prism + area of the bottom - 2 * area of the base of the top smaller prism

= 2(5*3 + 5*3 + 3*3) + 2(9*7 + 9*5 + 7*5) - 2* 3*5

= 2* 39 + 2*143 - 30

= 334

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