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Drag a statement or reason to each box to complete this proof. Given: Quadrilateral ABCD with m∠A=(7x)°, m∠B=(5x)°, m∠C=(7x)°, and m∠D=(5x)°. Prove: x = 15
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Drag a statement or reason to each box to complete this proof.

Given: Quadrilateral ABCD with m∠A=(7x)°, m∠B=(5x)°, m∠C=(7x)°, and m∠D=(5x)°.


Prove: x = 15

Drag a statement or reason to each box to complete this proof. Given: Quadrilateral-example-1
User Tom Grochowicz
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1 Answer

8 votes

2)
m\angle A+m\angle B+m\angle C+m\angle D=360^(\circ)

3) Substitution property

4) Combine like terms

User TommCatt
by
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