Question

What is the value of X in simplest radical form X = ____

Answer 1

${20}^{2} + {15}^{2} = \sqrt{625}$
square root of 625 is 25.

Answer 2

Answer:  x = 25

Step-by-step explanation:

Use the Pythagorean Theorem to find the hypotenuse.

a² + b² = c²    where a and b are the sides and c is the hypotenuse

20² + 15² = c²

400 + 225 = c²

625 = c²

$\sqrt{625}=\sqrt{c^2}\\\\\sqrt{\underline{5\cdot5}\cdot \underline{5\cdot5}}=c\\\\5\cdot5 = c\\\\25=c$