Question

The diameter of a circular lid is 3.5 m. How much will it cost to paint both sides of 50 such lids at the rate of
50 per sq m.​

Answer 1

Step-by-step explanation:

first covert diameter to radius and then multiply it by 50 ad ls there are 50 such lids and then again by 50 becoz rate is given and we have to find cost ! (⚡ anyone reding my answer correct me if wrong )

Answer 2

Answer:

Rs. 24040.625

Step-by-step explanation:

d of lid = 3.5m

r = d/2 = 3.5/2 = 1.75

Area = πr^2 = 3.14 * 1.75^2 = 3.14 * 3.0625 = 9.61625 sq. m

Number of lids = 50

Area of all lids = 9.61625 * 50 = 480.8125

Rate = Rs. 50 per sq. m

Cost = 480.8125 * 50 = Rs. 24040.625