SME
Grade 4 Math · Problem type
Classify triangles and quadrilaterals
Use this to sort triangles and four-sided shapes by right angles and parallel sides.
Sort
Does it have a right angle? Does it have parallel sides?
Tap a card, then tap its group.
Assumptions
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A right triangle has one right angle, a square corner.
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Parallel sides go the same way and never meet.
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A four-sided shape can have two pairs of parallel sides, one pair, or none.
•
A trapezoid has at least one pair of parallel sides (some books say exactly one).
Topic check
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