1. SURFACE
AREA

2. SURFACE AREA
| defined as the sum of the areas
of the outer surfaces of a solid.
These outer surfaces are called
faces.

3. SURFACE AREA
| sum of the lateral faces and the
bases
facelateraltheofABasetheofASA

4. Surface Area
of a Cube

5. | The surface area (SA) of a cube of
side s is given by
2
6sSA

6. Example 1
| Find the surface area of a cube
with a side of length 5 cm..

7. Example 2
| If the surface area of a cube is 216
cm2, determine the measurement of
the side of the cube.

8. Surface area
of a
RECTANGULAR
PRISM

9. | The SA of a rectangular prism of
length l, width w, and height h is given
by
hlhwlwSA 222

10. Example 1
| Find the surface area of a rectangular
prism whose length is 7 cm, width is 4
cm, and height is 5 cm.

11. Surface area
of a RIGHT
SQUARE
PYRAMID

12. | The SA of a right square pyramid w/
base of side s and slant height l is given
by
2
42 ls
sSA

13. Example 1
| Find the SA of a right square pyramid
w/ base of side 3cm and slant height
of 5 cm.

14. Surface area
of a RIGHT
CIRCULAR
CYLINDER

15. | The SA of a right circular cylinder of
radius r and height h is given by
OR
rhrSA 22 2
hrrSA 2

16. Example 1
| Find the SA of a right circular
cylinder which has a height of 20cm
and a base radius of 5cm.

17. Surface area
of a RIGHT
CIRCULAR
CONE

18. | The SA of a right circular cone of
radius r and slant height l is given by
rlrSA 2

19. 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.

20. Surface area
of a SPHERE

21. | The SA of sphere of radius r is given
by
2
4 rSA

22. Example 1
| What is the surface area of a ball
with a radius of 6 cm?