SOLUTION: The following are the lengths of two sides of a right triangle: one leg is 3 cm and the hypotenuse is 5 cm. Find the length of the missing leg

Question 711151: The following are the lengths of two sides of a right triangle: one leg is 3 cm and the hypotenuse is 5 cm. Find the length of the missing leg
Found 2 solutions by tutor_paul, srinivas.g:
Answer by tutor_paul(519) (Show Source): You can put this solution on YOUR website!
Use the Pythagorean theorum to solve this:

Where a and b are the sides, and c is the hypotenuse.
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Note this is what is called a 3-4-5 right triangle. This rule applies to all similar triangles to the 3-4-5, so you can solve for the sides of this kind of triangle easily. For example, if you are given a=6, b=8, you automatically know that c=10, since this is a "3-4-5 times 2."
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Good Luck,
tutor_paul@yahoo.com
Answer by srinivas.g(540) (Show Source): You can put this solution on YOUR website!
as per pythagoras theorem

side ^2 + side ^2 = hypotenuse ^2
3^2 + missing side ^2 = 5^2
9 + missing side ^2 = 25
missing side ^2 = 25-9
missing side ^2 =16
missing side = sqrt (16)
= 4 cm
answer = 4 cm
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