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Anna71 [15]
3 years ago
12

Write an expression to represent the perimeter of:

Mathematics
1 answer:
malfutka [58]3 years ago
8 0

So perimeter is adding all sides

In this picture, you have all sides, so add them up!

(2a-3)+(3a+1)+(2a) = P

So this expression shows that we're adding all sides that gives us the P, or perimeter :)

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Step-by-step explanation:

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Here. ...the sum of interior angle of triangle is 180° so...

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