Question

The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find
() its inner curved surface area,
the cost of plastering this curved surface at the rate of 40 per m².​

Answer 1

Answer:

$r = 3.5 \div 2m$

$h = 10m$

$2\pi \times 3.5 \div 2 \times 10$

$2 \times 3.14 \times 1.75 \times 10$

$109.9 {m}^{2}$

Step-by-step explanation:

hope u understand

Answer 2

Refer to above answer; it is correct and fully explained.