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What's on the worksheet
- Say if each plan gives one triangle, many or none, with a reason.Sides of 5 cm, 12 cm and 13 cm.Angles of 35°, 65° and 80°.Sides of 6 cm and 8 cm with an angle of 150° between them.A 4 cm side with angles of 90° and 95° at its two ends.Angles of 20°, 70° and 100°.
- Draw a corner shelf's triangle at a scale from its two edges.
- Draw a scale drawing of a sawhorse end from its legs and feet.
- Draw a triangle from an angle and two sides and find the shortest distance.
- Check Lucas's claim that two angles and a side give more than one triangle.
- Locate a swimmer from the angles at two lifeguard towers.
- Check Daniel's claim about a triangle with an obtuse angle and a short side.
Teach it first
The free lesson teaches it with worked examples and practice problems.
Drawing triangles from given sides and angles: one, many or none: the lesson ›More Chapter 8 worksheets: Angles, triangles and constructions
- 8.1Congruent angles, angle addition and bisectors
- 8.2Complementary and supplementary angles
- 8.3Adjacent angles and linear pairs
- 8.4Vertical angles
- 8.5Finding unknown angle measures
- 8.6Parts of a triangle
- 8.7Triangle inequality
- 8.8Drawing triangles from given sides and angles: one, many or none