Question

A cylindrical vessel open at the top has a diameter of 20cm and height 14cm find the cost of tin plating inside at the rate of 50paise per square cm

Answer 1

Note: I have used two values of pi
$in \: 2\pi \: rh \: one \: i \: have \: used \: \pi \: as \: 22 \div 7 \: while \: in \: \pi \: r {}^{2} one \: i \: have \: used \: \pi \: as \: 3.14$
Sorry if the answer is very slightly different. Hope this is the brainliest answer.

Answer 2

Answer:

Answer is Rs 5.97

Hope it help you