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Help me find the surface area :)

Help me find the surface area :)
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Help me find the surface area :)

Help me find the surface area :)-example-1
User Alex Karahanidi
by
7.9k points

2 Answers

5 votes
I also got 289 as an answer
User GodsBoss
by
7.7k points
5 votes

Answer:

Explanation:

unknown base side = √7²+7²= √98=7√2

SA = (2×½×7×7)+ (7+7+7√2)(10)

= 49 + 140 + 70√2

= (189 + 70√2) ft²

or

= 287.99 ft²

User Neomex
by
8.1k points
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