# A right triangle has one angle that measures 15°. What is the measure of the other acute angle?

Feb 5, 2018

${75}^{\circ}$

#### Explanation:

A triangle's three interior angles will add up to ${180}^{\circ}$. Since it's a right angle, that means one angle is ${90}^{\circ}$ and the other is given as ${15}^{\circ}$.

Therefore,

$90 + x + 15 = 180$

So

$x = 180 - 90 - 15$

$x = 75$

The acute angle is ${75}^{\circ}$.