A square pyramid with side 10 cm has a volume of 400 cm³. Find the total surface area of the pyramid.

If each edge of a cube is reduced by 25 percent, find the ratio of the volume of the original cube and the resulting cube?

The radius of a semicircle is 35 cm, find its area and perimeter.

The ratio of the radii of two wheels is 3: 4, then the ratio of their circumferences will be.

A wire of length 60 m is used to enclose a field which is in the shape of a right - angled triangle. The area of the field is 150 m² then, the largest side of the field has a length of: 

The perimeter of a square and an equilateral triangle is the same if the length of the diagonal of the square is $$ {12 \ sqrt {2}} $$ cm. If, what will be the area of the triangle?

Find the shaded area in the given figure. If each circle having radius of 7cm?

What is the total surface area and curved surface area of a solid semi circle with radius of 14 cm?