An arc of a circle of radius 10 cm subtends a right angle at the centre of the circle. Find the area of the corresponding major sector. (Use $\pi = 3.14$)

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Step 1: Area of circle $= 3.14 	imes 10 	imes 10 = 314$ cm$^2$
Step 2: Area of minor sector $= \frac{3.14 	imes 10 	imes 10 	imes 90}{360} = 78.5$ cm$^2$
Step 3: Area of major sector $= 314 - 78.5 = 235.5$ cm$^2$

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