Question

find angle a and b please fast​

Answer 1

answer is 80 degree answer is right then like and rate

Answer 2

Answer:

a = 80°, b = 120°.

Step-by-step explanation:

• <PRQ and a form a straight line.                                                                                   So, <PRQ + a = 180°.

         

               <P + <Q + <R = 180 (form a triangle)

                 30 + 50 + <R = 180  (<PRQ can also be considered as <R).

                          <R = 100

                    a = 180 - 100 = 80°.

• b = a + <S ( sum of opposite interior angles = exterior angle).

         b = 80 + 40

         b = 120°.

                                                                                                                                     

(VALUE OF a CAN ALSO BE FOUND IN THE SAME WAY  OF b)