Two adjacent angles of a parallelogram are in the ratio 2:7 Find all the angles. step by step.
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The angles of the parallelogram are 40° , 140° , 40° and 140°.
- Two adjacent angles of a parallelogram PQRS are in ratio 2:7.
- Let suppose, ∠P:∠Q = 2:7
- Let the common multiple be x.
- Therefore, ∠P=2x and ∠Q=7x.
- Opposite angles of a parallelogram are congruent.
- Therefore, ∠R=2x and ∠S=7x.
- Now sum of all angles of a quadrilateral is equal to 360°.
∠P + ∠Q + ∠R + ∠S = 360
2x + 7x + 2x + 7x = 360
18x = 360
x = 20
- Now, ∠P = 2×20 = 40° , ∠Q = 7×20=140°, ∠R =40° and ∠S=140°.
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Now you have step to step answer bro
Just see and write bro
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