2. Find the perimeter of the given triangles.
(i) An equilateral triangle with side 13 cm
(ii) An isosceles triangle whose two equal sides are 15 cm and the third side is 20 cm long.
(iii) A scalene triangle with side 12 m, 10 m and 5 m.
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Answer:
(i) 39 cm
(ii) 50 cm
(iii) 27 cm
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