Question

I’m timed plsss answer correctly I’ll mark u brainliest

Answer 1

Answer:

$\sqrt{125}$

Step-by-step explanation:

Use Pythagorean theorem since you have a right triangle $15^{2}$ = $10^{2} + x^{2}$

225 = 100 + $x^{2}$ so x = $\sqrt{125}$

Answer 2

Answer:

x = 5$\sqrt{5}$

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

x² + 10² = 15²

x² + 100 = 225 ( subtract 100 from both sides )

x² = 125 ( take the square root of both sides )

x = $\sqrt{125}$ = $\sqrt{25(5)}$ = 5$\sqrt{5}$ ← in simplest radical form