Triangle a is dilated by a scale factor of 2. what is the ratio of the perimeter of triangle a to the perimeter of triangle b?

the ratio is 1:2

Step-by-step explanation:

Triangle A is dilated by a scale factor of 2

Suppose we take triangle A with sides a,b,c

To find the perimeter we add all the side. So the perimeter of triangle A is

Triangle A is dilated by a scale factor of 2. So we multiply the sides of the triangle by 2. when we multiply the sides by 2 then sides becomes 2a,2b, 2c

Now the perimeter of triangle B is

So the perimeter of triangle B is 2 times the perimeter of triangle A

 the ratio is 1:2

i'm assuming it's looking for the missing length, which should be 4cm

hope this !

step-by-step explanation:

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