Classifying Triangles & Quadrilaterals (Year 8)
Free printable UK Year 8 (Key Stage 3) maths worksheet: classify triangles by side and angle, and name quadrilaterals from their properties.
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Grade 7 · Math worksheet
Name
Date
Math
Classifying Triangles & Quadrilaterals
Classify each triangle by its sides or angles, and name each quadrilateral from its properties.
Word bank
KiteAcuteSquareObtuseScaleneRhombusRectangleIsoscelesParallelogram
- 1.A triangle has side lengths 7 cm, 7 cm, 4 cm. Classify it by its sides.
- 2.A triangle has side lengths 7 cm, 7 cm, 5 cm. Classify it by its sides.
- 3.A triangle has side lengths 5 cm, 7 cm, 10 cm. Classify it by its sides.
- 4.A triangle has angles 54 degrees, 51 degrees and 75 degrees. Classify it by its angles.
- 5.A triangle has angles 104 degrees, 20 degrees and 56 degrees. Classify it by its angles.
- 6.Name the quadrilateral with these properties: 2 pairs of equal opposite sides, opposite angles equal, but no right angles.
- 7.Name the quadrilateral with these properties: 2 pairs of equal opposite sides, and 4 right angles (but not all 4 sides equal).
- 8.Name the quadrilateral with these properties: 4 equal sides, and 4 right angles.
- 9.Name the quadrilateral with these properties: 4 equal sides, opposite angles equal, but no right angles.
- 10.Name the quadrilateral with these properties: 2 pairs of adjacent equal sides, and exactly 1 pair of opposite equal angles.
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