Level 3 PSLE
OPQRS is part of a circle of radius 10 cm. OPR and OQS are quarter circles. The area of the shaded part OQR is 40 cm2 and the perimeter of the shaded part OQR is 30 cm. For each of the following, use the calculator value of π to find:
the area of the figure OPQRS, correct to 2 decimal places,
the perimeter of the figure OPQRS, correct to 1 decimal places.
Level 3 PSLE
OPQRS is part of a circle of radius 10 cm. OPR and OQS are quarter circles. The area of the shaded part OQR is 40 cm2 and the perimeter of the shaded part OQR is 30 cm. For each of the following, use the calculator value of π to find:
the area of the figure OPQRS, correct to 2 decimal places,
the perimeter of the figure OPQRS, correct to 1 decimal places.
Level 3
Mrs Singh had a rectangular garden measuring 13 m by 8 m. She decided to build a small pond inside the garden for her koi fishes and the surrounding area was laid with pebbles. Find the area of the pebbled pathway .
Level 3
Mrs Singh had a rectangular garden measuring 13 m by 8 m. She decided to build a small pond inside the garden for her koi fishes and the surrounding area was laid with pebbles. Find the area of the pebbled pathway .
Level 3
In the figure, WXYZ and XYML are squares. P and N are centres of square WXYZ and PQRS respectively. O is the centre of XY. If WL = 56 cm, take π = 227 and
find
the perimeter of the shaded region,
the area of the shaded region.
Level 3
In the figure, WXYZ and XYML are squares. P and N are centres of square WXYZ and PQRS respectively. O is the centre of XY. If WL = 56 cm, take π = 227 and
find
Level 3 The rectangle is made up of some triangles. The three shaded triangles are identical. The perimeter of the rectangle is 84 cm. Its breath is 15 cm. Find the total area of the shaded triangles.
Level 3 The rectangle is made up of some triangles. The three shaded triangles are identical. The perimeter of the rectangle is 84 cm. Its breath is 15 cm. Find the total area of the shaded triangles.
Level 3
The figure shows a square plot of land that Mr Tan has. The perimeter of the square plot of land is 120 m. He wants to fence up the rectangular shaded area to grow vegetables. The price of fencing 1 m of land is $28. How much does Mr Lim need to pay for fencing the land?
Level 3
The figure shows a square plot of land that Mr Tan has. The perimeter of the square plot of land is 120 m. He wants to fence up the rectangular shaded area to grow vegetables. The price of fencing 1 m of land is $28. How much does Mr Lim need to pay for fencing the land?
Level 3
The figure is not drawn to scale. It is formed by quadrants and semicircles of two sizes. The radius of the larger quadrant is 3 cm longer than the radius of the smaller quadrant. The radius of the smaller quadrant (Line B) is 12 cm.
Find the area of the shaded part.
Find the perimeter of the dotted line. (Take π = 3.14)
Level 3
The figure is not drawn to scale. It is formed by quadrants and semicircles of two sizes. The radius of the larger quadrant is 3 cm longer than the radius of the smaller quadrant. The radius of the smaller quadrant (Line B) is 12 cm.
Find the area of the shaded part.
Find the perimeter of the dotted line. (Take π = 3.14)
