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SURFACE AREA
SURFACE AREA
| defined as the sum of the areas of the outer surfaces of a solid. These outer surfaces are called faces.
SURFACE AREA
| sum of the lateral faces and the bases face lateral the of A Base the of ASA
Surface Area of a
Cube
| The surface area (SA) of a cube of side s is given by
26sSA
Example 1
| Find the surface area of a cube with a side of length 5 cm..
Example 2
| If the surface area of a cube is 216 cm2, determine the measurement of the side of the cube.
Surface area of a
RECTANGULAR PRISM
| The SA of a rectangular prism of length l, width w, and height h is given by hlhwlwSA 222
Example 1
| Find the surface area of a rectangular prism whose length is 7 cm, width is 4 cm, and height is 5 cm.
Surface area of a
RIGHT SQUARE PYRAMID
| The SA of a right square pyramid w/ base of side s and slant height l is given by
2
42 lssSA
Example 1
| Find the SA of a right square pyramid w/ base of side 3cm and slant height of 5 cm.
Surface area of a
RIGHT CIRCULAR CYLINDER
| The SA of a right circular cylinder of radius r and height h is given by
OR
rhrSA 22 2
hrrSA 2
Example 1
| Find the SA of a right circular cylinder which has a height of 20cm and a base radius of 5cm.
Surface area of a
RIGHT CIRCULAR
CONE
| The SA of a right circular cone of radius r and slant height l is given by rlrSA 2
Example 1
| Find the SA of a right circular cone if the radius of its base is 3.5 cm and its slant height is 7.25 cm.
Surface area of a SPHERE
| The SA of sphere of radius r is given by
24 rSA
Example 1
| What is the surface area of a ball with a radius of 6 cm?