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Speed of Bus =90km/h =90×5/18=25m/sec. T=25sec Distance =25×25=625m.
Find the length of the direct common tangent of two circles with radii 8 cm and 5 cm respectively, if the distance between their centres is 11 cm.
A semicircle has a radius of 7 cm. What is the perimeter of the semicircle?
In a circle, the length of a chord is 20 cm, and the perpendicular from the center to the chord divides it into two equal parts. If the distance from th...
A sector of a circle has a central angle of 90°. If the radius of the circle is 10 cm, what is the area of the sector?
A circular racing track has been developed in a field. If the difference between the outer circumference and the inner circumference of the racing track...
