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4 March, 18:31

Find the unknown of the figure and the area of the figure. one of the side measurements is 70 feet. p = 230 ft

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  1. 4 March, 20:37
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    Area = 3150 ft²

    Unknown Side = 45 ft²

    First, you know two of the sides of the shape have a length of 70 ft. So you subtract 140 (which is 70 · 2) from 230 and get 90. 90 is the total length of the two unknown sides. In order to find one side you divided 90 by 2. Here is the work I did:

    70 · 2 = 140

    230 - 140 = 90

    90 : 2 = 45

    45 is the length of the unknown side.

    Now to find area:

    Area = length * width

    Area = 45 x 70

    Area = 3150 ft ²

    Note that saying "ft squared" is very important because it lets the reader know that it is a 2D shape.
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