SOLUTION: In a right traingel ABC one leg is 7 inches and the hypotenuse is 20 inches, find the other leg.

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Question 107381: In a right traingel ABC one leg is 7 inches and the hypotenuse is 20 inches, find the other leg.
Answer by Annabelle1(69) About Me  (Show Source):
You can put this solution on YOUR website!
We use Pythagoras' theorem.
a%5E2%2Bb%5E2=c%5E2
c is your hypotenuse
so we have
7%5E2%2Bb%5E2=20%5E2
49%2Bb%5E2=400%7D%0D%0A%7B%7B%7Bb%5E2=400-49
b%5E2=351
b=sqrt%28351%29
b=18.73