Question

Two adjustant angles of a parallelogram are in the ratio 5:4. Find all the angles of the 11 parallelogram.​

Answer 1

Step-by-step explanation:

Let the angles be x

according to their ratio

Ist angle= 5x

2nd angle =4x

The sum of adjacent angles of parallelogram = 180°

so,

5x+4x=180

9x=180

x=20°

so,

Ist angle =100°

2nd angle =80°

angle 1= angle 3(opposite angles)

angle 2=angle 4 (opposite angles)

so,angle 1= 100°

angle 2= 80°

angle 3=100°

angle 4 = 80°