Question

plz tell the obtained values of a, b, c and d​

Answer 1

Answer:

a = 50°, b = 70°, c = 80° , d = 50°

step-by-step explanation:

angle c and 80 degree angle are opposite to each other.

So, c= 80°

angle b and 70° are opposite to each other.

So, b = 70°

Now, angle a and angle d are opposite to each other.

So, angle a = angle d -----(1)

Again,

(2×60°) + (2×70°) + 2a = 360°

or, 2a = 100°

or, a =50° = d [ FROM 1]

Answer 2

Answer:

a=d=30 ,c=80 ,b=70

Step-by-step explanation:

we know that a=d

b=70. , c = 80 ( opposite angles are equal)

so,

b=70 ,c=80

PQ is a straight line

so,

d+70+80 = 180(angle made by straight line)

d+ 150 = 180

d = 180- 150

d = 30.

so,

a=d=30 ,b = 70 , c = 80..

I hope it will help you.....