Area of circle is ……. Sq . Units .

If the area of a circle is 49 pi sq. Units then its perimeter is

If the area of circle is 49 pi sq. units then it's perimeter is

Total surface area of cylinder is ……… sq. units.

Total surface area of cube is ……….sq. units.

Area of triangle = ………….sq. units .

Surface area of a sphere is ……….. sq. units.

Total surface area of hemisphere is ……….. sq. units.

The ratio of the areas of two squares is 1:4 .if the area of the first is 9 sq. units . The area of the first square is ____ ( in sq. units)

A circle is inscribed in a square. The area of the circle is 154 sq. cm. Find the percentage of the area unoc-cupied by the circle in the square.