The sum of the radius of the base and the height of a closed solid cylinder is 12.5 cm. If the total surface area of the cylinder is 275 cm2, then its radius is: \((\text{Take }\pi = \frac{22}{7})\)
If a and b are the lengths of two sides of a triangle such that the product ab = 24, where a and b are integers, then how many such triangles are possible?
What is the perimeter of a right-angled triangle whose sides (making 90°) are \(20\sqrt{3}\ \text{cm}\) and \(15\sqrt{3}\ \text{cm}\)?
\(60\sqrt{3}\ \text{cm}\)
\(55\sqrt{3}\ \text{cm}\)
\(65\sqrt{3}\ \text{cm}\)
\(50\sqrt{3}\ \text{cm}\)