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Find the perimeter of the figure.
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The perimeter is the distance all the way around the figure.
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We find the perimeter by adding all the side lengths together: 23 centimeters plus 20 centimeters plus 16 centimeters plus 11 centimeters.
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Adding all of these together, in the units place, three plus zero plus six plus one equals 10.
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Write down your zero, carry your one.
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Then, we move on and add our tens place: one plus two plus two plus one plus one equals seven.
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We’re working with centimeters.
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So we also bring down our units.
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The perimeter, the distance all the way around this trapezoid, is 70 centimeters.