Question

1. find the unknown side of the triangle below. 21 in 29 in x 25 in 20 in 24.5 in 13 in

Explanation:

Step1: Identify triangle type and sides

It's a right triangle: hypotenuse=29in, one leg=21in, unknown leg=x.

Step2: Apply Pythagorean theorem

$a^2 + b^2 = c^2$ → $21^2 + x^2 = 29^2$

Step3: Calculate squares

$441 + x^2 = 841$

Step4: Solve for x²

$x^2 = 841 - 441 = 400$

Step5: Find x

$x = \sqrt{400} = 20$

Answer:

B. 20 in