Question

Find the unknown side of the right triangle below. Round to the nearest tenth

Answer 1

B) 7.1 ft

Explanation:

Two ways to go about this:

Method 1:

Recognize that since the side lengths are equal to each other, then the hypotenuse must be equal to 5√2 or about 7.1 feet since the triangle is a 45-45-90 triangle.

Method 2:

By using the Pythagorean Theorem, a^2+b^2=c^2, we have 5^2+5^2=c^2 --> 25+25=c^2 --> 50=c^2 --> 7.1≈c

Answer 2

7.1

Explanation:

5^2 + 5^2 = c^2

25 + 25 = c^2

50 = c^2

7.1 = c