Question

In a quadrilateral ABCd angle a=60degree angle b=80degree and angle c is thrice of angle d find the Angle c and angle d

Answer 1

Answer:

10 °= d

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°

Answer 2

140 degrees + 4x(or any other variable) =360 degrees

Hence, 4x = 220 degrees
x = 55 degrees

Therefore, angle d is 55 degrees and angle c is 165 degrees