Question

PQRS is a cyclic quadrilateral such that PR is the diameter of the circle. If
angke QPR = 50° and angleSPR = 60°, then angle QRS = .....
a) 50
b) 60 c) 110° d) 70°​

Answer 1

Answer:

option d) = 70°

Step-by-step explanation:

angle QPR + angle SPR = angle SPQ

angle SPQ = 50 + 60 = 110

now opposite angles of cyclic quadrilateral are supplementary

so,

angle SPQ + angle QRS = 180°

110° + angle QRS = 180°

angle QRS = 180° - 110°

angle QRS = 70°

Answer 2

Answer:

70 is the correct answer

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