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3 years ago

6

Find the value of a. 19 km 19 km Perimeter = 57 kilometers

1 answer:

zloy xaker [14]3 years ago

8 0

Answer:

19km

Step-by-step explanation:

The formula for the perimeter of a triangle is: S+S+S.

So;

19km+19km+a=57km

a=57km-19km-19km

=19km

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