Respuesta :

Sambhavkharel

Step-by-step explanation:

Just do this

2(L+B)

2(18+24)

2×42

84 Ans.

perimeter is the sum of every side of the shape. in this case you have two sides that are 18 and two that are 24 (since a rectangle has two congruent sides). so when you add 18+18+24+24 together you get 84 which is your answer

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