Question

in a quadrilateral ABCD, angle A is 60°,Angle B is 2 ,Angle C is equal to Angle D​

Answer 1

Answer:

30°= c. Step-by-step explanation: let angle d be x. so angle c will be 3x. using angle sum property:- a+b+c+d=180°. 60°+80°+3x+x=180°. 140+4x=180°. 4x=180°-140°. 4x=40°. x=10°. 3x=30°. 5.0. 2 

Answer 2

Step-by-step explanation:

Let angle D :- x

so angel C .x

A+B+C+D = 180

60+80+3x+x =180

140+4x = 180

4x= 180-140

4x=40

x= 40 by 4

x= 10

3x = 10 ×3 = 30