The figure shows a shaded crescent resulting from having a smaller circle inside a larger circle. The area of the crescent is 462 cm². If the diameter of the smaller circle is 14 cm, what is the area of the larger circle?

The figure shows four identical semicircles arranged on each side of a square. Find the perimeter of the figure.

An archery target was drawn using three circles with the same centre O, the radius of the three circles are 35 cm, 21 cm and 7 cm respectively.

(a) Find the area of the unshaded part.

The figure shows a circular paper with one side folded inwards. The ratio of the area of the shaded part to the ratio of the unshaded part is 2: 7. What is the area of the shaded part if the circle had a diameter of 28 cm?

A hula hoop is rolled in a straight line on the ground for 10 complete turns

from point X to point Y. The hula hoop has a diameter of 70 cm. Find the distance from X to Y in metres.

Jane cut out the shaded figure from a rectangular piece of cardboard measuring 21 cm by 14 cm. What was the area that was cut out?

The figure is made up of 4 identical squares and 2 identical semicircles.

Find the area of the figure.

The figure shows two quadrants in a square. Calculate the area of the shaded part.

The figure shows a square with a circle and 2 similar quadrants inside it. The radius of the quadrant is half the length of the square. Find the shaded area.

The figure is made up of 2 overlapping semicircles. Find the shaded area.