Lesson 2 · Triangle, Quadrilateral and Polygon

Constructing Triangles

MathematicsSubject
15 minEstimated read
Exercise 2.1

Construct these four triangles

The taskConstruct a triangle with sides 6 cm, 5 cm and 4 cm. Then one with sides 7 cm and 4 cm and an angle of 45° between them. Then one with a side of 6 cm and angles of 50° and 60° at its two ends. Then try one with sides 3 cm, 4 cm and 8 cm.
The fourth one is a trap, and it is deliberateDo not give up when the arcs will not meet. Write down why they cannot: 3 plus 4 is 7, and 7 is less than 8. Naming the reason is the answer, not the drawing.
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