Surface Area

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?