Question

plz answer question 8​

Answer 1

given :- diameter of the circular table top = 1.6m

therefore it's radius = 1.6/2 = 0.8m

area of the circular table top = πr² (we used this formula because the table top is circular)

= 3.14 × 0.8 × 0.8

= 2.0096m²

now, total cost of polishing if per m² cost rupees 15 = 15 × 2.0096

= rupees 30.144