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Find the exact length of the third side.

Find the exact length of the third side.-example-1
User Redzack
by
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1 Answer

11 votes

Answer:

5sqrt3

Explanation:

Using the pythagorean theorem, we have a^2+4^2=9^2

a^2 + 16 = 81

a^2 = 75.

a = sqrt75.

75 = 25*3. 25 is a perfect square, so sqrt75 = 5sqrt3

User Sergio Majluf
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