If the measures of two angles of a triangle are 99° and 24° , what is the measure of the third angle?

The measure of the third angle would be 57 °.

All three angles of any triangle add up to 180 °, so you would add 99 and 24 to get 123 and subtract 123 from 180 to get 57.

The interior angles of a triangle will add up to 180 degrees ... always

99 + 24 + x = 180

123 + x = 180

x = 180 - 123

x = 57 < = = ur other angle