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4 years ago

12

ABC is a straight line.

2 answers:

guapka [62]4 years ago

6 0

Answer:

AB = 20 metres

BC = 60 metres

Step-by-step explanation:

Let AB = x

Then, BC = 3x

<u><em>Condition:</em></u>

=> x+3x = 80

=> 4x = 80

Dividing both sides by 4

=> x = 20

So,

AB = 20 metres

BC = 3(20)

BC = 60 metres

ddd [48]4 years ago

6 0

The length of bc is 60 meters

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