asked 9.1k views
3 votes
Determine the length of the hypotenuse of a right triangle if the legs have lengths 12 inches and 16 inches?

asked
User Stevejb
by
7.7k points

1 Answer

11 votes

Answer:

c = 20 inches

Explanation:

To find the sides of a right triangle, you use the Pythagorean Theorem.

a² + b² = c²

You know a and b, and you need to find c, the hypotenuse.

Plug in a and b.

(12)² + (16)² = c²

Simplify by solving the exponents.

144 + 256 = c²

Combine the constants.

400 = c²

Take the square root of both sides.

√400 = √c²

Solve the √

±20 = c

The length cannot be negative, so you can eliminate that as an option.

So, c = 20

answered
User Valjas
by
8.3k points

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