3 years ago

Find BC if BD = X + 29, AD = x = 39, AC = 20, and BC = x + 19

Mathematics

1 answer:

nalin [4]3 years ago

5 0

Answer:

10 units

Step-by-step explanation:

We are given that

BD=x+29

AD=x+39

AC=20

BC=x+19

AC=AB+BC

20=AB+x+19

AB=20-x-19=1-x

AD=AB+BD

$x+39=1-x+x+29$

$x=30-39=-9$

Substitute the value of x=-9

Then , we get BC= $-9+19=10$ units

Answer: BC=10 units

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