(ii) हीरोन सूत्र के प्रयोग के बिना उस त्रिभुज का क्षेत्रफल ज्ञात कीजिए जिसकी भुजाएँ
5 cm, 12 cm और 13 cm हैं।
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Answer:
its a triplet of right angle triangle .
so we can directly apply the formula of area of triangle .
base=5
height =12
area of triangle=1/2×base×height
=1/2×5×12
=30cm^2
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