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Pythagorean theorem

a=? b=13 c=21

2 Answers

3 votes
a^2 + b^2= c^2
a^2 + 13^2 = 21^2
a^2 + 169 = 441
a^2 = 441 - 169
a^2 = 272
a = sqrt 272
a = 16.492 rounds to 16.5
User Shinite
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1 vote
a would equal 16.4924 or square root of 272
User Itchy Nekotorych
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