Question

in quadrilateral pqrs angel p=87degree,angel q=78degree and angel r 90 degree .find the angel s

Answer 1

s=360-87-78-90
=105
since the sum of all angles in the quadrilateral is equal to 2π

Answer 2

Answer:

Step-by-step explanation:

Solution :

Given : In quadrilateral pqrs ,

Angle p =87°

Angle q =78°

Angle R = 90° .

To find angle s ,

We know that the sum of interior angle of a quadrilateral =360 °

So,angle ( p +q+r+s )=360°

( 87°+78°+90°+s) =360°

(255°+s) =360°

S=(360°-255°)

S =105°

Therefore angle s =105 °