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please help, this is geometry and i don’t know how to do this

Please Help This Is Geometry And I Dont Know How To Do This class=

Sagot :

devishri1977

Answer:

Step-by-step explanation:

In a a parallelogram, opposite sides are equal.

6x = 24

Divide both sides by 6

[tex]\dfrac{6x}{6}=\dfrac{24}{6}[/tex]

x = 4

In a parallelogram, opposite angles are equal.

∠B = 76°

In a parallelogram, adjacent angles are supplementary.

∠A + ∠D = 180°

∠A + 76 = 180

∠A= 180 - 76

∠A = 104°

∠BAC + ∠CAD = ∠A

∠BAC + 21 = 104

∠BAC = 104 - 21

∠BAC = 83°

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