Question

Given a quadrilateral inscribed in a circle, which of the following pairs are valid opposite angle measures?

A. 90, 90
B. 30, 90
C. 10, 160
D. 52, 128

Answer 1

Hey @lilcrunch use the theorem from the previous post

Answer 2

There will only be two valid answers (opposite angles are supplementary)

Answer 3

so its d

Answer 4

what about a?

Answer 5

90+90=180

Answer 6

let me do the calculation..

Answer 7

indeed it is

Answer 8

so its a and d :)

Answer 9

indeed.. i have another