The adjacent angles of a parallelogram are (3y-7) and (7y-13).Find the angles.
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12
Answer:
There are six important properties of parallelograms to know:
Opposite sides are congruent (AB = DC).
Opposite angels are congruent (D = B).
Consecutive angles are supplementary (A + D = 180°).
If one angle is right, then all angles are right.
The diagonals of a parallelogram bisect each other
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1
Answer:
∠A=53° and ∠B=127° Plz Mark Brainliest.
Step-by-step explanation:
Let ∠A be 3y-7 and ∠B be 7y-13
∠A and ∠B are cointerior angles
∴∠A+∠B=180
∴3y-7+7y-13=180
∴10y-20=180
∴10y=180+20
∴y=200/10
∴y=20
substituting value of y in ∠A and ∠B
∠A=3(20)-7=60-7=53°
∠B=7(20)-13=140-13=127°
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