Help me please

99

40

Step-by-step explanation:

a) 99

b) 40

Step-by-step explanation:

a)

Supplement means the angles add up to 180

180 - 81 = 99

b)

Complement means the angles add up to 90

90 - 50 = 40

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

if i put something wrong your not gonna like it so rather not say nothing.