The sides of a triangle-shaped sheet are 5 cm, 12 cm and 13 em. Find the cost of painting
on the sheet at the rate of Rs. 30 per cm2
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Sides of triangles - 5 cm, 12 cm,13 cm
perimeter - sum of all sides
5+12+13 - 30 cm2
Cost of sheet per cm2 - Rs 30
answer - rs 30
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