__Aim:__*How do we calculate the surface area of a cylinder?*

So for surface area you'll basically need the formula of a rectangle + 2 times the formula for a circle. Which gives you the SA formula.

Surface ares: 2PI RH+2PIRsquared

- The surface area is the outside of a solid. So here we'll be working with solids like pyramids & cones. They both have triangles.

- Pyramids have triangles as the lateral area and only one face

To find the surface area of a pyramid you must fist find the Lateral area.

L.A=1/2P*l*

to find the sureface area you have to add the lateral area to the size of the base

S.A= L.A+B

To calculate the surface area of a cone

1/2Circumfrence times H plus Pi R squared

To calculate the surface area of a cone

1/2Circumfrence times H plus Pi R squared

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