WEBVTT
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Find the perimeter of the shaded rectangle.
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We know that perimeter is the distance around.
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We need to find the distance around this rectangle by counting unit lengths.
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We can see that the left width is two.
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The width on the right is also two.
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We need to find the length by counting: one, two, three, four, five, six, seven, eight, nine, 10.
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The length at the bottom is 10.
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And that means the length at the top is also 10.
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Since the perimeter is the distance all the way around, we add up the four distances we found.
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The perimeter equals two plus 10 plus two plus 10.
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Two plus 10 equals 12.
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Two plus 10 again equals 12.
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12 plus 12 equals 24.
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The perimeter of the shaded rectangle is 24.