Question

the surface area of cylinder is is 140 CM square then a few and height is 10 centimetre find its base radius​

Answer 1

Answer:

$\huge\blue{\boxed{r = \frac{49}{22} }}$

Step-by-step explaination:-

$csa \: of \: cylinder = 2\pi rh$

$140 = 2 \times \frac{22}{7} \times r \times 10$

$\frac{140 \times 7}{2 \times 10 \times 22} = r$

$\frac{7 \times 7}{22} = r$

$\frac{49}{22} = r \\ r = \frac{49}{22}$

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