In triangle ABC, AB=AC and AD is a median. If AD=12cm and the perimeter of triangle ABC is 48cm, then find ABC
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Answer:
72cm^2
Step-by-step explanation:
We have to find the area of ∆ABC
Formula : area of ∆ABC = 1/2×b×h
Since, AD = median
Therefore, BD = AD/2 = 12/2 = 6
BD=6
Since, BC is base
Therefore, BC=2BD
BC=12
Therefore area of ∆ABC = 1/2 × 12 × 12
= 12 × 6
= 72cm^2
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