Question

Find each angle of pentagon if its angles are in the ratio of1:2:3:5:9

Answer 1

Answer:

Let the angles be 1x,2x,3x,5x and 9x respectively

the sum of the angles of a pentagon is 540

1x+2x+3×+5×+9×=540

20×=540

×=540/20

×=27

the angles of the pentagon are

27 degree

54 degree

81 degree

135 degree

243 degree