Find the number of common tangents, if r1 + r2 = C1C2 .(With usual notations, r1 & r2 and C1 & C2 are the radii and centres of the two circles.)
- The dimensions of a cuboidal box are in the ratio 8:4:3 for its length, breadth, and height respectively. If the total surface area of the box is 2,176 cm�...
A solid right circular cylinder is melted and shaped into a right cone with a base of equal radius. By what percent is the length of the solid increased?
If base of a prism is square of side 9 cm & height is 32 cm . What is the volume of prism?
What will be the value of sin 10° – 4/3 sin3 10°?
The radius of a cylinder is increased by 20%, and its height is decreased by 10%. Find the percentage change in the volume of the cylinder.
A rectangular lawn 35m x 40m has two roads each 4metres wide, running in the middle of it, one parallel to the length and the other parallel to the brea...
If the volume of a cuboidal tank is 2240 m3Â and the ratio of the length, width and height of tank is 8:7:5 respectively then find the height...
The area of a square is 576 cm2 which is 172 cm2 less than that of a rectangle. Find the perimeter of the rectangle if the length ...
If the ratio of areas of two circle is 4:9, then the ratio of their circumferences will be:
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