Question

question
the triangle below is isosceles. find the length of side x to the nearest tenth.
image of a right isosceles triangle with one leg labeled 9 and hypotenuse labeled x
answer attempt 1 out of 2
x = blank box submit answer

Explanation:

Step1: Identify triangle type

It's a right isosceles triangle, so legs = 9.

Step2: Apply Pythagorean theorem

$$x^2 = 9^2 + 9^2 = 81 + 81 = 162$$

Step3: Calculate x

$$x = \sqrt{162} \approx 12.7$$

Answer:

12.7