Question

What is the missing side length? (Use Pythagorean Theorem)

Answer 1

Answer:

20 units

Step-by-step explanation:

The Pythagorean Theorem states that:

                                $a^{2} + b^{2} = c^{2}$

Now we can insert values into the equation.

                                      $a = 15\\b = b\\c = 25$

Now we can plug these ☝ values into the Pythagorean Theorem:

                                  $15^{2} + b^{2} = 25^{2}$

After we solve for $b$ we get:

$b^{2} = 400\\b = 20$

Answer 2

Answer:

b = 20

Step-by-step explanation:

15 + b = 25

(you have to square each one)

15 x 15 = 225

b x b = b

25 x 25 = 625

625 - 225 = 400

$\sqrt{400}$ = 20

hope this helps