For the following questions answer them individually
The length of each edge of a regular tetrahedron is 12 cm. The area (in sq cm) of the total surface of the tetrahedron is
The heights of two cones are in the ratio 1 : 3 and the diameters of their bases are in the ratio 3 : 5. The ratio of their volumes is
The internal radius and thickness of a hollow metallic pipe are 24 cm and 1 cm respectively. It is melted and recast into a solid cylinder of equal length. The diameter of the solid cylinder will be
A circle is inscribed in a square whose length of the diagonal is 12 $$\sqrt{2}$$ cm. An equilateral triangle is inscribed in that circle. The length of the side of the triangle is
If the perimeter of a square and a rectangle are the same, then the areas P and Q enclosed by them would satisfy the condition
If the area of a rectangle be (x^{2}+7x+10)sq.cm,then one of the possible perimeter of it is