Question

answer this...it's the last for today first and correct answer will be marked as brainliest❤​

Answer 1

Step-by-step explanation:

angle BPQ + angle PQD= 180. -(I). (co interior angles)

dividing eq (I) by 2

We get 1/2 BPQ+ 1/2 PQD = 90

Given that PR and QR as bisectors so

angle RPQ + angle RQP = 90. -(II)

In ∆RPQ

R+P+Q = 180. (angle sum property)

R + 90 = 180

angle R = 90

Hence proved America