Q4 of 50 Page 13

In a Δ ABC, AB = 15 cm, BC = 13 cm and AC = 14 cm. Find the area of ΔABC and hence its altitude on AC.

Let a, b and c are the sides of triangle and s is the semi-perimeter, then its area is given by:


A = where [Heron’s Formula]



= = 21


A =


A = = cm2


Area of triangle =


84 =


Altitude = 12 cm


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