The measures of two supplementary angles differ by 20°. Then, the measure of the acute angle among them is …………….. .
A. 50°
B. 80°
C. 100°
D. 20°
Answer:B
The measures of two supplementary angles differ by 20°. Then, the measure of the acute angle among them is …………….. .
A. 50° B. 80° C. 100° D. 20°