Question

Free Brainliest! **PLEASE HELP**

Answer 1

$a^2+16^2=20^2$

$a^2+256=400$

Subtracting 256 from both sides

$a^2=144$

Taking squareroot both sides

$a= \sqrt144$

$a = \sqrt2.2.3.2.2.3$

$a=12$

Therefore length of missing leg is

$a = 12 units$

Answer 2

a^2+16^2=20^2

a^2+256=400

Subtracting 256 from both sides

a^2=144

Taking squareroot both sides

a= \sqrt144

a = \sqrt2.2.3.2.2.3

 a=12

Therefore length of missing leg is  

a = 12 units