Question

PQRS is a cyclic quadrilateral if m angle p = 80 then m angle R= ?

Answer 1

given that PQRS is a quadrilateral
P=80
if angle p= 80 then angle R = 100
because the opp. angle of cyclic quadrilateral are supplementary

Answer 2

in cyclic quadrilateral sum of opp. angles is equal to 180
therefore <p + <r = 180
<r = 180 - 80
<r = 100
I hope this will be helpful
please make me brainliest it will help me