Question

Find the missing length of the triangle.

Answer 1

Using the Pythagorean theorem the formula would look:

$c^2=b^2+a^2\Longrightarrow3.4^2=3^2+a^2$

Now just solve for a.

$a^2=3.4^2-3.0^2\Longrightarrow a=\sqrt{3.4^2-3.0^2} \\ a=\sqrt{11.56-9}=\sqrt{2.56}=\boxed{1.6}$

Side a is 1.6 inches long.

Hope this helps.

r3t40