Question

Use the figure to find the measures of the numbered angles.

∠1 =
∘
∠2 =
∘

Answer 1

Answer: <1= 107 <2=73

Step-by-step explanation: Zigzag method for <1

<1+<2=180

180-<1=<2

180-107=73

Answer 2

Explanation:

The given angle is 107°;

Since the lines given are parallel and a transversal cuts them, angle 1 and 107° are corresponding angles.

Corresponding angles are equal;

So, ∠1 = 107°;

Now, ∠1 and ∠2 are angles on a straight line;

∠1 + ∠2 = 180°

107° + ∠2 = 180°

∠2 = 180° - 107° = 73°