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Gwar [14]
2 years ago
15

 Find the length of the third side. If necessary, write in simplest radical form.

Mathematics
1 answer:
Stolb23 [73]2 years ago
8 0

Answer:

7

Step-by-step explanation:

As it is a RIGHT triangle, the formula is a^2+b^2=c^2.

We are given one leg and the hypotenuse. That means 4^2x2+b^2=81.

To find 4 root 2 square, you square them individually then multiply.

4^2=16 times 2 (root 2 squared is 2).

Simplified, that gives 16x2=32,

81-32=49.

The last leg is seven.

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