Question

Total surface atra of cylinder of radius 7 cm is 880 cm find the/height and volume of the cylinder

Answer 1

$\textbf{\underline{\underline{According\:to\:the\:Question}}}$

r = 7cm

★Assume height be h cm

TSA = 2πr^2 + 2πrh

= 2πr(r + h)

$\tt{\rightarrow 2\times\dfrac{22}{7}\times 7\times (7 +h)}$

= 44(7 + h)

44(7 + h) = 880

7 + h = 20

h = 20 - 7

h = 13

★Volume of cylinder

= πr^2h

$\tt{\rightarrow\dfrac{22}{7}\times 7\times 7\times 13}$

= 2002 cm^3