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A classroom board is 30 inches wide and 18 inches tall. Gill is putting ribbon along the outside edge of the board. How many inches of ribbon does he need?

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Answer:

96 inches

Step-by-step explanation:

Use perimeter to measure the outside edges of something.

(30 × 2) + (18 × 2)

30 + 30 + 18 + 18

96 inches of the ribbon would be needed

In order to determine the inches of ribbon needed, we are to calculate the perimeter of the board

The board is in the shape of a rectangle, so we would use the formula for the perimeter of a rectangle to determine the length of the ribbon needed.

Perimeter of a rectangle = 2 x (length + breadth)

2 x (30 + 18) = 96 inches

To learn more about the perimeter of a rectangle, please check: https://brainly.com/question/18793958?referrer=searchResults

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