Question

If m 2 = 23° and m3 = 68°, what is m 1?
O
A. 23°
B. 68°
C. 89°
D. 91°

Answer 1

i think it is 68 degree i think

Answer 2

D 91

Explanation:

Add 3 +2 =68 +23=91

Sum of any angle in atringle is 180 (rule)

Then 180-91 =89 (the missing angle in the traingle)

Since the sum of any straight angle is 180 (Therom)

180 - 89 =91

Or

The some of 2 interior angle in a triangle equal to the opposite exterior angle (Therom)

So 68 +23 = 91