Free brainliest! ** ** use the equation to find the length of the missing leg measure. a^2 + 16^2 = 20^2 1. evaluate powers: a^2 + 256 = 400 2. undo addition: a^2 = 144 3. undo the square: a= 144 ( square root ) what is the length of the missing leg measure? a = units

a = 12 units

Step-by-step explanation:

a = 12 units

Step-by-step explanation:

Equation given is

First we have to evaluate the powers.

= =

= =

So we can now write the equation again as:

Now we have to undo the addition,

Now we have to find the square root of to get the value of

 or

But the length of a leg cannot be a negative value, so we can take the +12.

a = 12 units

mean, 40.6

step-by-step explanation: