Question

ABCD is a parallelogram. The ratio of ∠A and ∠B of this parallelogram is 2 : 3. Find the measure of ∠B​

Answer 1

Answer:

ABCD is a parallelogram

A=2x

B=3x

A and B are adjacent angles of a parallelogram

so , A+B=180(co interiorangles)

2x+3x=180

5x=180

x=180/5=36

so, B=3x=3×36=108

Step-by-step explanation:

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Answer 2

Answer:

let the angle of a and b be 2x and 3x respectively

2x + 3x = 180⁰ (sum of adjacent angles)

5x = 180⁰

x = 180/5

x = 36⁰

2x = 2 × 36 = 72⁰

3x = 3 × 36 = 108⁰

angle b = 108⁰

Step-by-step explanation:

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