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A right angled triangle has two sides with lengths 4 and 3. What is the third side length?
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The right triangle has two sides of length 4 and 3. The third side can have a length which can be calculated using the Pythagorean Theorem. As it is not given that 4 and 3 are the lengths of the smaller sides, I'll consider all the cases.
In case the shorter sides are 4 and 3, the third side has a length sqrt ( 16 + 9) = sqrt 25 = 5
Else, if the side has a length L, sqrt (L^2 + 3^2) = 4
=> L^2 + 9 = 16
=> L^2 = 7
=> L = sqrt 7
The third side of the triangle can have a length 5 or sqrt 7.
Posted by justaguide on March 23, 2011 at 4:48 AM (Answer #1)
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