Step 1; Note down the given values and draw the figure according to the given instructions

Step 2: Find the unknown area by the known areas.

          NOTE: Area of the minor segment = Area of the sector - area of the triangle

Step 3: Calculate the area of the sector

          [Step 1: Recall the area of the sector formula  

            NOTE: \frac{\theta}{360} * \pi r^2

            Step 2: Substitute all the values in the formula.

          EXAMPLE:   \frac{\theta}{360} * \pi r^2

                        \frac{90}{360}\ *\ 3.14\ *\ 10^2

            Step 3: Simplify the equation

            EXAMPLE:  \frac{1}{4}\cdot\ 314\ cm^2

                                78.5\ cm^2]

Step 4: Find the area of the right angle triangle

            EXAMPLE: Area of right angled triangle QPR = \frac{1}{2} * base * height   

                                        =\frac{1}{2}\times10\times10

                                                    =50\ cm^2

Step 5: Determine the area of the segment

            NOTE: Area of the minor segment = Area of the sector - area of the triangle

            EXAMPLE: Area of the minor segment = 78.5 - 50

                                                                          = 28.5

Step 6: Evaluate the circle area

            NOTE: Area of the circle = \pi r^2

                  EXAMPLE: 3.14 * 10 * 10

                                      =    314 cm^2

Step 7: Find the major segment area

            NOTE: Major segment area = Total area of the circle - area of the minor

                        segment

                                                          =  314 - 28.5  cm^2  

                                                          = 285.5 cm^2