Question

Join Q and S in the adjoining fig . 9.10 and prove that angle P +angle Q + angle r +angle s =360degree

Answer 1

Step-by-step explanation:

In the given fig joining Q and S we get 2 triangles

By angle sum property of triangles in triangles PQS and QSR we get 180 degrees in 2 triangles and 180+180=360

Hence prooved