Find the measures of angles 1, 2, and 3 (simplify your answer. type an integer or a decimal)

m<1 = 60 deg; m<2 = 120 deg; m<3 = 25 deg

Step-by-step explanation:

The sum of the measures of the angles of a triangle is 180 degrees.

We start with the left triangle.

85 + 35 + m<1 = 180

120 + m<1 = 180

m<1 = 60

Angles 1 and 2 form a linear pair, so they are supplementary. That means that the sum of the measures of angles 1 and 2 is 180 deg.

m<1 + m<2 = 180

60 + m<2 = 180

m<2 = 120

Now we work on the right triangle.

m<2 + m<3 + 35 = 180

120 + m<3 + 35 = 180

m<3 + 155 = 180

m<3 = 25

 m<1 = 60 deg; m<2 = 120 deg; m<3 = 25 deg

both equations and proportions are better.

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: