Calculate the total surface area and lateral surface areaof the given

1.	Calculate the total surface area and lateral surface areaof the given cylinder;h=7cm5 Marksr=7cm
Answer» $\sf{\underline{Given}}$ Height of the cylinder (h) = 7 cm Radius of base (R) = 7 cm $\sf{\underline{To\:Find}}$ Total Surface AREA LATERAL Surface Area $\sf{\underline{Solution}}$ Height = 7 cm Radius of base = 7 cm $\sf{LSA\:of\:a\:cylinder = 2\pi rh \:sq.units}$ = $\sf{LSA = 2\times \dfrac{22}{7}\times(7)^2\times7}$ = $\sf{LSA = 1078\:cm^2}$ Now, $\sf{TSA\:of\:a\:cylinder = 2\pi r(r+h)\:\:sq.units}$ = $\sf{TSA = 2\times\dfrac{22}{7}\times7(7+7)}$ = $\sf{TSA = 44\times7\times14}$ = $\sf{TSA = 4312\:cm^2}$ _________________________________________ $\sf{\underline{More\:Information}}$ $\sf{Volume\:of\:cylinder = \pi r^2h\:\:cu.units}$ $\sf{TSA\:of\:a\:cylinder = 2\pi r(r+h)\:\:sq.units}$ $\sf{LSA\:of\:a\:cylinder = 2\pi rh \:sq.units}$ $\sf{\underline{Note}}$ LSA stands for Lateral Surface Area. TSA stands for Total Surface Area. Lateral Surface area is also known as Curved Surface Area (CSA).