SOLUTION: Given a right triangle with b=4 and c=11,find a approximated to three decimal places

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Question 78517: Given a right triangle with b=4 and c=11,find a approximated to three decimal places
Answer by b_howie(8) About Me  (Show Source):
You can put this solution on YOUR website!
a%5E2%2Bb%5E2=c%5E2
a%5E2%2B4%5E2=11%5E2
a%5E2%2B16=121
*subtract 16 from both sides
a%5E2=105
**take the square root of both sides
a=10.247
***check:
10.247%5E2%2B4%5E2=11%5E2
105%2B16=121