Q16. If the difference between the semi perimeter s and the sides a, b and c of AABC are 8cm,7cm and 6cm
respectively, then ar(AABC) is
(a) 63cm2
(b) 42cm2
(c) 84cm2
(d) 168cm?
answer with step my step explanation
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the area of triangle ABC will be 84cm²
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