Question

Two adjacent angles of a parallelograms are in the ratio of 4:5. Find the measure of all is angles​

Answer 1

Step-by-step explanation:

Sum of angles in a parallelogram = 360

[opposite angles of a //gram are equal]

So, 4x + 4x + 5x + 5x = 360

     18x = 360

     x = 360/18

     x = 20

Hence,

Angle 1 = 20 * 4 = 80 degree

Angle 2 =20 * 4 = 80 degree

Angle 3 = 20 * 5 = 100 degree

Angle 4 = 20 * 5 = 100 degree

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