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Construction of Triangles Given 2 Sides and Included Angle

Draw Δ D E F ...

Question

Draw ∆ DEF such that DE = DF = 4 cm and EF = 6 cm. Measure ∠E and ∠F.

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Solution

Steps of construction:

Draw a line segment EF of length 6 cm.

With E as centre, draw an arc of radius 4 cm.

With F as centre, draw an arc of radius 4 cm intersecting the previous arc at D.

Join DE and DF to get the desired triangle.DF, .

By measuring we get, $∠ E = ∠ F = 40 °$

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Construction of Triangles Given 2 Sides and Included Angle

Standard VII Mathematics

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