Question

5. Find the area of a triangle if its sides are
(i) 21 cm, 17 cm and 10 cm
(iii) 52 cm, 60 cm and 56 cm
(ii) 17 cm, 25 cm and 26 cm
(iv) 42 cm, 39 cm and 45 cm.
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Answer 1

1/2*10*17= 85 ans

1/2*56*52=14 56 CM square

1/2*25*17=212.5 cm²

1/2*45*42=945 cm² ans