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The perimeter of an equilateral triangle is 723 m. Find its height.

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Important Questions on Geometry and Mensuration

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The inner circumference of a circular track is 440 cm. The track is 14 cm wide. Find the diameter of the outer circle of the track.
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A track is in the form of a ring whose inner and outer circumference are 352 meter and 396 meter respectively. Find the width of the track.
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The outer circumference of a circular track is 220 meter. The track is 7 meter wide everywhere. Calculate the cost of leveling the track at the rate of 50 paise per square meter. 
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Find the area of the quadrant of a circle whose circumference is 44 cm
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A pit 7.5 meter long, 6 meter wide and 1.5 meter deep is dug in a field. Find the volume of the soil removed in cubic meters.
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Find the length of the longest pole that can be placed in an indoor stadium 24 meter long, 18 meter wide and 16 meter high.
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The length, breadth and height of a room are in the ratio of 3:2:1. If its volume be 1296 m3, find its breadth.
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The volume of the cube is 216 cm3. Part of this cube is then melted to form a cylinder of length 8 cm. Find the volume of the cylinder.