If the radius of a circle is increased by 15% its area increases by _____.

A rectangle has an area 30 cm² and perimeter 26 cm. Its sides (in cm) are

A wire is in the form of a circle of radius 98 cm. A square is formed out of the wire. What is the approximate length of a side of the square?

What is the volume of the largest sphere that can be carved out of a wooden cube of side 21 cm?$$( π{22\over 7})$$

How many metres of 2-m-wide cloth will be required to make a conical tent with the diameter of the base as 14 m and slant height as 9 m ignore wastage?

A conical vessel, whose internal radius is 20 cm and height is 27 cm, is full of water. If this water is poured into a cylindrical vessel with internal radius 15cm, what will be the height to which the water rises in it?

If a regular polygon has 16 sides, then what is the measure (in degrees) of its each interior angle?

The angles of triangle are in the ratio 3:4:5 the measure of the largest angle of the triangle is