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Draw a triangle whose sides are of lengths 4 cm, 5 cm and 7 cm. - Mathematics

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Question

Draw a triangle whose sides are of lengths 4 cm, 5 cm and 7 cm.

Diagram

Solution


Let us assume that given sides are BC = 7 cm, AS = 4 cm and AC = 5 cm

Steps of construction:

Step I: Draw a line BC = 7 cm

Step II: With centre B and radius 4 cm draw an arc.

Step III: With centre C and radius 5 cm, draw an arc which cuts the previous arc at A.

Step IV: Join AB and AC.

Hence, ΔABC is the required triangle in which AB = 4 cm, BC = 7 cm and AC = 5 cm.

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Chapter 12: Practical Geometry Symmetry and Visualising Solid Shapes - Exercise [Page 375]

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NCERT Exemplar Mathematics [English] Class 7
Chapter 12 Practical Geometry Symmetry and Visualising Solid Shapes
Exercise | Q 99. | Page 375
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