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How do you calculate the area of the shape that makes up the top and bottom of the cylindee

Sagot :

Cylinder is consists of two circles at both sides .

  • Area of circle=πr^2

There are two circles

Total area:-

  • 2πr^2

The shape that makes up the top and bottom of a cylinder is Circle.

  • The formula to find area of circle is:

Where,

  • r is the Radius of the circle

Since, There are two circles we will multiply the area by 2

[tex] \boxed{2\pi {r}^{2} }[/tex]

[tex]\red{ \rule{35pt}{2pt}} \orange{ \rule{35pt}{2pt}} \color{yellow}{ \rule{35pt} {2pt}} \green{ \rule{35pt} {2pt}} \blue{ \rule{35pt} {2pt}} \purple{ \rule{35pt} {2pt}}[/tex]

Some important formulas related to circle:

[tex] \boxed{ \sf \: circumference = 2\pi r}[/tex]

[tex] \boxed{ \sf \: area = \pi {r}^{2} }[/tex]

[tex] \boxed{ \sf \:radius = \frac{1}{2} \times diameter }[/tex]

[tex] \boxed{ \sf \:diameter = 2 \times radius }[/tex]

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