Question

Radius of circle is 10 cm.area of sector is 100 cm2.find the area of its corresponding major sector

Answer 1

formula of area of sector is Pi R squared theta .get value of theta and subtract it from 360 use the formula again with new theta.

Answer 2

radius of circle=10 cm
area of the circle= πr²
                          = 22/7 x 100
                          = 314.28 cm²
now,
       area of minor sector= 100 cm²
therefore,
                    area of major sector= (314.28 - 100) cm²
                                                    = 214.28 cm²