Question

Find the value of a.

Answer 1

16

Explanation:

Square root(20^2-12^2)

Answer 2

a=16

Explanation:

Given that there is a right angle triangle. whose sides are 20, 12 and "a".

Using that information we have to find that value of "a".

Since it is a right angle triangle hence apply Pythagorean formula:

`20^2=12^2+a^2`

`400=144+a^2`

`400-144=144+a^2-144`

`256=a^2`

Take square root of both sides

`16=a`

Hence final answer is a=16