The ratio between the number of sides of two regular polygons is 1 : 2 and the ratio between there interior angles is 2 : 3. The number of sides of these polygons is respectively 

If the circumcenter of the triangle lies outside it, then the triangle is 

If each side of a cube is increased by 10%. Then find the percent change in the volume of the cube.

ΔABC is similar to ΔDEF. Length of AB is 18 cm and  length of the corresponding side  DE is 10 cm. What is the ratio  of Perimeter of ΔABC : Perimeter of ΔDEF?

In ΔABC, ∠C=90° and CD is perpendicular to AB at D. If AD/BD=$$ {\sqrt{k}}$$, then AC/BC=?

If radius of a sphere is decreased by 48%, then by what percent does its surface area decrease?

In the given figure, ∠QRU = 72°, ∠TRS = 15° and ∠PSR = 95°, then what is the value (in degrees) of ∠PQR ?

G is the centroid of a triangle ABC, and the median is AD, the ratio of AD and GA is