Question

ZABC and ZQRS are supplementary angles.

If the measure of ZABC = 91', what is the
measure of ZQRS?
mZQRS = [?]°

Answer 1

Solution given:

<ABC and <QRS are supplementary angles.

<ABC = 91°

we have

<ABC +<QRS=180°[supplementary]

<QRS=180°-91°=89°

m<QRS=89°