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  1. Chapter 11 Class 9 Constructions
  2. Serial order wise
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Construct a Right triangle whose base is  12 cm and sum of its hypotenuse and other side is 18 cm. Let triangle be Δ ABC Given base BC = 12 cm, ∠ B = 90°  and AB + BC = 18 cm. Steps of construction Draw base BC  = 7 cm and at point B make an ∠ XBC = ∠ B = 75° Cut a line segment BD equal to AB + AC from ray BX. Join DC. Draw perpendicular bisector PQ of line DC. Let PQ intersect BD a point A. Join AC. Then, Δ ABC is the required triangle.

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .