Question

The radius of a right circular cylinder is 7cm and height is 14cm. find its curved surface area and total surface area and total surface area. ​

Answer 1

$\huge\red{HELLO\:MATE}$

Radius of the cylinder = 7cm.

$<I>$Height of the cylinder = 14cm.

$<b>Therefore curved surface area of cylinder = 2πrh </b>$

= (2 × 22/7 × 7 × 14)cm^2.

= 616cm^2.

$<b>Therefore Total surface area of cylinder = 2πr(r + h)</b>$

= {2 × 22/7 × 7 (7 + 14)} =( 2 × 22/7× 7 × 21)cm^2

= 882cm^2.

Answer 2

$\huge\bf\orange{ANSWER:-}$

Radius = 7cm

Height = 14cm

Curved Surface Area of the cylinder = 2πrh



$= 2 \times \frac{22}{7} \times 7 \times 14$

$= 616 \: cm {}^{2}$

Now,

Total surface area of cylinder = 2πr(r + h)

$= 2 × \frac{22}{7} × 7 (7 + 14)$

$= 882 \: cm {}^{2}$

Therefore,

Curved Surface Area is 616 cm^2 and Total Surface Area is 882 cm^2