Question

Finish the length of the third side if necessary right in simplest radical form PLEASE ANSWER FAST

Answer 1

The unknown side is the hypothenuse of the triangle.

We use the Pythagoras theorem which states that the square of the hypothenuse equals the sum of the opposite square and adjacent square.

Mathematically, the Hypothenuse is:

`H=\sqrt[]{O^2+A^2}`

where H = hypothenuse,

O = opposite

A = adjacent

Thus, Hypothenuse in this instance is:

`H=\sqrt[]{2^2+4^2}=\sqrt[]{20}=\text{ 2}\sqrt[]{5}`