Question

A right circular cylinder has radius 3.5 cm and hight 11 cm. Its total surface area in cm2 is​

Answer 1

Answer:

242 cm 2 is correct answers of this question

Answer 2

$\huge\purple{Required \: Answer :}$

Given :

• Radius - 3.5 cm
• Height - 11 cm

To Find :

• Total Surface Area - ?

Formula :

• $2\pi {r}^{2}$

Solution :

Total Surface Area -

$</em></strong><strong><em>=</em></strong><strong><em> </em></strong><strong><em>2\pi r(r + h) \\ = 2 \times \frac{22}{7} \times 3.5(3.5 + 11) \\ = 2 \times \frac{22}{7} \times 3.5(14.5) \: \: \: \: \: \: \: \\ = 2 \times \frac{22}{7} \times 50.75 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = 318.71 \: {cm}^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$\huge{Thanks : ❤}$