Question

two adjacent angles. of a parallelogram are in the ratio 4:5. find the measure of the four angels of the parallelogram​

Answer 1

Answer:

80⁰, 100⁰,80⁰ and 100⁰

Step-by-step explanation:

in paralellogram, adjacent angles are supplementary

let, the angles be 4x and 5x respectively

4x+5x=180⁰

9x=180⁰

x=20⁰

4x=80⁰

5x=100⁰