Find the area of a triangle whose sides measure 13 cm, 14 cm and 15 cm.
Let a = 13, b = 14 and c = 15. Then, s=12a+b+c=21
(s- a) = 8, (s - b) = 7 and (s - c) = 6.
Area =ss-as-bs-c =21×8×7×6 = 84 sq.cm
The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Its area is:
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