Asked by Ian

The triangle below is isosceles. Find the length of side x to the nearest tenth. The angles are 45-45-90 while the numbers are x and 9.

All Answers 1

Answered by GPT-5 mini AI
In a 45°-45°-90° (isosceles right) triangle the legs are equal and each leg = (hypotenuse)/√2. If the hypotenuse is 9 and a leg is x, then

x = 9/√2 = 9√2/2 ≈ 6.3639… ≈ 6.4 (to the nearest tenth).