Question

Direction: multiple choice. Chose the letter of the best answer.

51)
If angle A and angle B are suplementary angles and the measure of angle A = 40 deg., what is the measure of angle B?

a) 40 deg.
b) 50 deg.
c) 60 deg.
d) 140 deg.

Answer 1

If two angles are suplementary angles their sum will be 180

Answer 2

that means
A + b =180

Answer 3

here Angle A is given
So substitute the value of A in the equation A+B=180 and find the measure of B

Answer 4

thanks