Question

Two adjacent angles of a parallelogram are in the ratio 2:3. Then the angles are
a) 72 degree, 108 degree b)60 degree, 120degree
c) 40 degree, 140 degree. d) 650degree ,115 degree​

Answer 1

Answer:

the answer is a)72 degree ,108degree

Step-by-step explanation:adding 2 and 3 and dividing by 180(adjacent angles are supplementary) we will get the value of x as 36 multiplying 2 with 36 we get the value of first angle and multiplying the 36 with 3 we get the third value

Answer 2

Answer:

A) 72° ,108°

Step-by-step explanation:

let the two adjacent angles of a parallelogram = 2x & 3x

2x + 3x = 180° ( adjacent angles of a parallelogram are supplementry)

2x + 3x = 180°

5x = 180°

x = 180/5

x = 36

So,

2x = 2 * 36 = 72°

3x = 3 * 36 = 108°