Which of the following sets of figures are quadrilaterals?
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square, circle, rhombus
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hexagon, parallelogram, rectangle
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parallelogram, square, trapezoid
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triangle, rectangle, rhombus
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To answer this problem you want to begin by knowing
for sure what a quadrilateral is. A quadrilateral
is a 4-sided polygon. This means that a circle isn't
a quadrilateral and neither is a triangle by definition.
There are even others, but let's go through each choice
and find the one that has all quadrilaterals.
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Choice A can be eliminated right
away as a circle is not a quadrilateral.
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Choice B can be eliminated because
a hexagon isn't a quadrilateral. Remember why? A
hexagon has 6 sides while a quadrilateral only has
4 sides.
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Choice C has all quadrilaterals
as the parallelogram and square are easy to see
being
quadrilaterals. Remember that a trapezoid has
four sides as well so therefore is a quadrilateral.
Looks
like this could be our best answer. But we need
to check the last choice to make sure.
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Choice D can be eliminated as
a triangle only has three sides therefore isn't
a quadrilateral.
Our answer for this problem is letter C.
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Example
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