if √1+x/121 = 13/11 then find the value of

Angle bisectors of Q and R meet at point S, inside the triangle PQR. If angle QSR = 120˚ , then the measure of angle P is:

• The radii of two cylinders are in the ratio of 5: 6 and their heights are in the ratio of 4: 3. The ratio of their volume is

The volume of a cube is 216 cm³. If the cost of painting the cube is Rs. 12 per cm², then find the cost of painting five faces of the cube.

Find the area of the octagon whose side is 20 cm?

Ratio of length to width of a rectangular field is 3:5. If the perimeter of the field is 160 metres, then find the area (in m²) of the field.

If ∆ ABC~∆ FDE such that AB = 9 cm, AC = 11 cm, DF = 16 cm and DE = 12 cm, then the length of BC is:

Find the surface area of the smallest cube that can perfectly fit a sphere of volume 47916π cm³ inside it.  

If a triangle with base 15 cm has the same area as a circle with radius 15 cm, then the corresponding altitude (in cm) of the triangle is: 

If the radius of a cylinder is 17 cm and its curved surface area is 1309 cm² then find the height of the cylinder?