Question

how do find total surface area of a cylindrical rod if diameter of 14cm and 10cm height what is total surface area?

Answer 1

Answer:

Hey Champ Here's Your Answer:

Step-by-step explanation:

Total surface area of a cylinder = Curved Surface Area + Area of two circles(lid and bottom)

Total surface area of a cylinder(TSA) = 2πrh+2πr2

where r denotes the radius and h denotes the height of the cylinder.

So, TSA = 2πr(h+r)

h=TSA 2πr−r

Now, the diameter is given to be 14 cm, so the radius r will be 7 cm. Substitute this value in the equation above to get height h in terms of total surface area.

                                 Hope it helps................

Answer 2

$\huge{\boxed{\boxed{\mathcal{\blue{Answer} }}}}$

It is important to see perspective in the things.

Given that :-

$\sf\implies$ Diameter = 14cm

$\sf\implies$ radius = 7cm

$\sf\implies$ height = 10cm

Then according to questions :-

using formula,

$\boxed{\boxed{\boxed{\mathcal{\red{Total\: surface\: area = 2\pi r (r + h)} }}}}$

Total surface area of cylinder = 2 × π × 7 ( 7 + 10)

Total surface area of cylinder = 2 × 22 × 17

Total surface area of cylinder = 748cm²