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23. A chord of a circle of radius 14 cm subtends an angle of 120° at thecentre. Find the area of the corresponding minor segment of the circleUse π = 22 and V3 = 1.73]24. An open metal bucket is in the shape of a frustum of a cone of height21 em with radii of its lower and upper ends as 10 cm and 20 emrespectively. Find the cost of milk which can completely fill the bucketat Rs. 30 per litre. [Use π = 22] |
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Answer» hit like if you find it useful H = 21R = 20r = 10 volume of frustum = 3.14/3*H(R^2 + r^2 +(10×20) = 3.14/3×21(100+400+200)= 15386 cubic cm liter 15386/1000 = 15.386 liters Cost = 15.386×30= 461.58 Rs |
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