WEBVTT
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Choose the rectangle.
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We’re given five different shapes.
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We have to choose the one which is a rectangle.
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Let’s think about what we already know about rectangles.
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A rectangle has four sides.
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Which of our five shapes has four sides?
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A circle doesn’t have any sides.
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This shape has three sides; it’s a triangle.
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So we have three shapes left to choose from.
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Each of these shapes has four sides.
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But we’re only looking for one rectangle.
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What else do we know about rectangles?
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Rectangles also have four right angles.
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Each of its four angles is 90 degrees.
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The first of our shapes has four right angles.
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None of our other shapes with four sides have any right angles.
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This is the rectangle.
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It has four sides and four right angles.