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Question is in picture
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Question is in picture

Question is in picture-example-1
User Antonio Jha
by
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1 Answer

2 votes

Answer:

27.5

Explanation:

pythagorean theorem. a^2+b^2=c^2.

so 12^2+b^2=30^2

meaning 144+b^2=900

900-144=756

square root 756

b=27.5

User Rrs
by
3.4k points
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