SOLUTION: if the length of two sides of a right angled triangle are 15cm. and 20cm. Find the length of hypotenuse,

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Question 797057: if the length of two sides of a right angled triangle are 15cm. and 20cm. Find the length of hypotenuse,
Answer by luke94(89) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there, you would use pythagoras's theorem to calculate the hypotenuse
c%5E2+=+a%5E2+%2B+b%5E2
give 15cm the value of a, and 20cm the value of b.
now calculate:
c%5E2+=+15%5E2+%2B+20%5E2
c%5E2+=+225+%2B+400
c%5E2+=+625
c+=+sqrt%28625%29
c+=+25