Question

The measure of angle 3 is 42°.

What is the measure of angle 1 in degrees?

Answer 1

48 is the answer

Explanation:

Answer 2

<1 = 48

Explanation:

<1 + <2 + <3 = 180 since they form a line

<1 + 90+ 42 =180

Combine like terms

<1 + 132 =180

Subtract 132 from each side

<1 +132-132 =180-132

<1 = 48