Finding missing side -triangle

Example 1: Find the base of the triangle whose area and height are given below area = 35 m2 , height = 5 m Solution: Given: Area = 35 m2 and Height = 5 cm; To find: Base Area of a triangle = 35 m2 = x b x 5 = 35 m2 b x 5 = 35 x 2 (Multiply the denominator 2 to RHS) b x 5 = 70 b = (Divide 5 to LHS) x b x h x b x 5 = 14 Ans: Base = 14 m

Ans: Height = 20 m Example 2: Find the height of the triangle whose area and base are given below area = 40 m2 , base = 4 m Solution: Given: Area = 40 m2 and Base = 4 cm; To find: Height Area of a triangle = 40 m2 = x 4 x h = 40 m2 2 x h = 40 h = (Transpose 2 to R.H.S) h = 20 x b x h x 4 x h Ans: Height = 20 m

Try these 1. Find the base of a triangle whose area = 39m2 and height = 12m 2. Find the height of a triangle whose area = 25cm2 and base = 10cm