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Find the length of the third side. If necessary, round to the nearest tenth

Find the length of the third side. If necessary, round to the nearest tenth-example-1

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Answer:

6.3

Explanation:

This is a right triangle, so in order to solve you can use the Pythagorean theorem; which is a² + b² = c² (The hypotenuse, or the longest side, equals C. A and B equal the legs, or the shorter sides.) So once you plug in the values, your equation should look like this:

3² + b² = 7²

Square each side, or in other words multiply it by itself.

9 + b² = 49

Subtract 9 from both sides.

b² = 40

Take the square root of 40 and your done!

b = 6.3

I hope this helped you! :)

User Kanchon Gharami
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