Question

Using Heron's formula solve the following problem sums:

A floor design consists of 16 triangles. The sides of each triangle measures 35 cm, 28 cm,
and 9 cm. The cost of fixing the tiles is Rs 2 per tile while the cost of polishing the tiles is 15
paise per square cm. if each tile costs Rs 17.50, find (1) the cost of polishing the design. (ii)
the total cost of the polished design.​

Answer 1

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