cordero01215 cordero01215

23-03-2021
Mathematics

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Quadrilateral ABCD is a parallelogram. What is BC?

Quadrilateral ABCD is a parallelogram What is BC class=

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tman160429 tman160429

23-03-2021

Answer:

BC = 36 ≅ (AQ+QD)

Step-by-step explanation:

1. Identify potential angles

∠Q≅90˚ so ∠B = 60˚ + 60˚ and ∠C = 30˚+30˚

2. Two isosoceles triangle

18=AB=AQ

18=CD=DQ

3. BC = AQ+QD

BC = 18+18

BC = 36

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