Question

2 adjacent angles of a parallelogram are in the ratio 5:4 find the measurement of all the angles of a parallelogram

Answer 1

Step-by-step explanation:

let ratio be 'x'

then 5x and 4x respectively

therefore,

5x + 4x =180 degree

9x = 180 degree

x = 20 degree

therefore ,

5x = 5 × 20 = 100 degree

4x = 4 × 20 = 80 degree