Question

If the interior angles of a parallelogram are in the ratio 3:5:9:13 Then the measure of

largest angle is

i) 36⁰ ii) 156⁰ iii) 108⁰ iv) 60​

Answer 1

Answer = 156


We know that angle sum property of a parallelogram is 360 . So ,

Let the angles be 3x,5x,9x,13x(as they are in this ratio)

3x + 5x + 9x + 13x = 360

30x = 360

x = 360/30 = 12

Largest angle is 13x = 12*13 = 156 and