Question

please help me to solve thsi​

Answer 1

Step-by-step explanation:

Since ab//cd

Therefore , angle bmn=dnm=90°

also mp qnd np are bisectors of these two angles repectively

so , angle pmn=pnm =45°

Applying ASP in triangle pmn

anglepmn+angle pnm +anglempn=180°

45°+45°+anglempn=180°

angle mpn =90°

hence proved