Question

a cylindrical pillar is 1 m in diameter and 4.2 m in height find the cost of whitewashing the curved surface of the pillar at the rate of Rupees 15 per metre square

Answer 1

hope this answer helps you

Answer 2

Answer:

Step-by-step explanation:

PERIMETER:  3.142 X 1.0  =  3.142 M

AREA     =  3.142  X  4.2  =  13M.SQ

COST : (15 X 1 ) *  13  = 195  .

Approx  200R.s