Question

find the size of the angle of parallelogram if one angle is 20 degree less than twice the smaller angle​

Answer 1

Answer: 113.3°

Step-by-step explanation:

let smallest angle be x°

then the other will be (2x-20)°

we know that adjacent angles of ||gm are supplementary

therefore,

x + 2x-20=180

3x=180+20

3x=200

x=200/3

x=66.6°

other angle =2× 66.6. -20= 113.3°

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