SOLUTION: in the formula c=sqrt of(2a squared+b squared). a=4 and b=5.my answer was 7.550? is this correct.

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Question 32331: in the formula c=sqrt of(2a squared+b squared). a=4 and b=5.my answer was 7.550? is this correct.
Answer by mukhopadhyay(490) About Me  (Show Source):
You can put this solution on YOUR website!
c=sqrt of(2a squared+b squared)
=>c=sqrt(2*4^2 + 5^2)
=>c=sqrt(2*16 + 25)
=>c=sqrt(32+25)
=>c=sqrt(57)
Exact answer of c is sqrt(57)
Approximate answer is what you have got.