What is BC ? Enter your answer in the box.

Mathematics

2 answers:

Sati [7]3 years ago

6 0

Because the angles are congruent, the two legs are congruent.

8x-4= 5x + 11

Add 4 to both sides.

8x=5x + 15

Subtract 5x on both sides.

3x=15

Divide 3 on both sides.

x=5br />
Enter 5 into BC.

4x-2 />
4(5)-2

20-2= 18 />
18 is the answer.

I hope this helps!
~kaikers

mario62 [17]3 years ago

4 0

8x - 4 = 5x + 11
8x - 5x = 11 + 4
3x = 15
x = 5

BC = 4*5 - 2 = 20 - 2 = 18 units

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