Level 2
The figure consists of 2 squares and a circle. If the length of the bigger square is 10 cm, what is the area of the shaded part?
2 m
Level 2
Find the perimeter of the shaded parts. (Take π = 3.14)
2 m
Level 2
The circles are not drawn to scale. The small circle is with radius a and the big circle is with radius A. The ratio of a to A is 4 : 7. If the area of the small circle is 169π cm2, find A. Express the answer in mixed number.
2 m
Level 2
The perimeter of the triangle WXY is 30 cm. Given that YW = 13 cm, WX = 12 cm, RY = PY and PX = QX, find the radius of the circle.
2 m
Level 2
A chain is wrapped round two wheels which has a diameter of 8 m. Line AB is 12 m. Find the length of the chain. (Take π = 3.14)
2 m
Level 2
A rectangle is placed in a circle with O as the centre. Use the calculator value of π to find the shaded part of the circle. Correct the answer to 1 decimal place.
2 m
Level 2
The figure shows a triangle enclosed within a semicircle. X is the centre of the semicircle. Find the area of the shaded part. (Take π = 3.14).
2 m
Level 2
The figure is made up of an equilateral triangle and a semi-circle of diameter 21 m. Find the perimeter of the figure. (Take π = 227)
2 m
Level 2
The figure shows a circle. O is the centre and the diameter XOY is 42 cm long. Each of the shaded part is formed by the radius of the big circle and 2 identical quarter arcs. Find the total area of the shaded parts in the figure. (Take π = 227)
2 m
Level 2
5 identical quarter circles were cut out from a square cardboard of length 18 cm. Find the area of the 5 quarter circles. Leave the answer in terms of π.
2 m