Respuesta :

The sum of the measure of the angles in a triangle are 180 degrees.

In this formula solve for x

32 + 70 + x = 180

102 + x = 180

(102 - 102) + x = 180 - 102

x = 78

The last angle is 78 degrees

Hope this helped!

~Just a girl in love with Shawn Mendes