how do you do this? i don't need it solved i just don't know how to do it. i know the note on the side says how to but i'm still confused

Perimeter of triangle J= 18.0 units (3 s.f.)

Perimeter of triangle K= 19.0 units (3 s.f.)

Step-by-step explanation:

The length of each side of the triangle can be found using the distance formula below:

Please see the attached pictures for full solution.

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step-by-step explanation:

for volume, add base x height x width