SOLUTION: The legs of a right triangle are 12 centimetres and 16 centimeters. What is the length of the hypotenuse?

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Question 1159207: The legs of a right triangle are 12 centimetres and 16 centimeters. What is the length of the hypotenuse?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!



20cm.



How?  Recognize 12-16-20 as a 3-4-5 triangle.   



Or, you could apply Pythagorean Theorem:

 +h+=+sqrt%2812%5E2+%2B+16%5E2%29+=+sqrt%28144%2B256%29+=+sqrt%28400%29+=+20+