Sides of a triangle are 13 cm, 84 cm and 85 cm. Find its area(in square cm)?

The ratio of curved surface area and volume of a cylinder is 1 : 7. The ratio of total surface area and volume is 187 : 770. What is the respective ratio of its base radius and height?

The radius of a cone is 20 cm and height is 21 cm, the total surface area of the cone is in square cm:

The length, width and height of a cuboid are 18 cm, 24 cm, and 4 cm, respectively. The volume of the cube is equal to the volume of the given cuboid. The arm of the cube is:

The volume of a prism is 288cm³ and height is 24cm. The area of the base of the prism (cm²) is:

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

The area  of a circle is 616 sq cm, find its circumference?

The total surface area of a hemisphere is 166.32 sq cm, find its radius?