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Quadrilateral ABCD is a parallelogram. What is the length of AD?

AB = x + 15
AD = 2x + 18
BC = 3 - x
CD = 3x + 25

Quadrilateral ABCD Is A Parallelogram What Is The Length Of AD AB X 15 AD 2x 18 BC 3 X CD 3x 25 class=

Sagot :

Thishigopalidn

Answer:

-5

Step-by-step explanation:

ab = dc

x+15= 3x+25

2x = -10

x = -5

substituting in ad and bc

-10+18 = 8

3-(-5)=3+5=8

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