A sector of a circle has a central angle of 150° and radius 10 cm. Another sector of the same circle has a central angle of 5π/6 radians. What is the ratio of the area of the first sector to that of the second?

उत्तर देखें और व्याख्या

उत्तर: (B) 1 : 1

व्याख्या

5π/6 rad = 150°, so the areas are equal: 1 : 1.