Question

If the sum of measures of angle a and b is 280 degrees, what is the measure of angle C?

Answer 1

Answer:

40 degrees

Step-by-step explanation:

because angle b and angle a are vertical angles they are congruent and if they add up to 280 you just have to divide that by 2 to get the value of one of the angles

280/2=140

because angle c and angle b are supplementary they are going to add up to equal 180

180-140=40 so c=40

Answer 2

Answer:

40

Step-by-step explanation: