Questions

From Worst to Best

26 P6.RA.TL.16010110

Level 3
The figure is not drawn to scale. It is made up of a square and a rectangle. The ratio of the area of the square to that of the rectangle is 3 : 4. After the shaded part is cut out, the ratio of the area of unshaded part of the rectangle to that of the unshaded part of the square is 2 : 1. Given the length of the square is 9 cm, find the area of the shaded part.

3 m

Video Attempt

27 P6.RA.TL.17042602

Level 3
The figure, not drawn to scale, on the right shows 2 rectangles overlapping each other. The ratio of the shaded area to the area of Rectangle X is 4 : 9. The ratio of the shaded area to the area of Rectangle Y is 3 : 6. Find the ratio of the unshaded area to the total area of the figure.

3 m

Attempt

Finding ratio LCM Area perimeter Rectangle Overlapping area Unchanged difference Units method

28 P6.AG.JC.15051409

Level 2 PSLE
Jasmine had a piece of ribbon 17p cm long. She formed a triangle, with sides measuring p cm, 5p cm and 30 cm, with part of the wire.

Express the length of the remaining ribbon in terms of p in the simplest form.
Jasmine used the remaining ribbon to form a rectangle of length 3p cm. If p = 8, what was the breadth of the rectangle?

3 m

Attempt

Algebra in 1 variable Algebra simplifying Algebra substitution Length Area perimeter Rectangle

29 P6.AG.NK.21061107

Level 3 PSLE
The perimeter of figure ABCDE is (10w + 14) cm. The perimeter of square ABCD is 20 cm.

Find the perimeter of triangle ADE in terms of w.
The perimeter of figure ABCDE is 44 cm. What is the value of w?

3 m

Attempt

Algebra in 1 variable Algebra substitution Area perimeter Square Triangle

30 P6.RD.TL.17042616

Level 3
The figure is made up of a circle, a triangle and a square of sides 8 cm. The radius of the circle is 7 cm. The ratio of the area of the circle to the shaded area of the circle is 7 : 3. The ratio of the area of the square to the area of the triangle is 1 : 4. Given that ¹₄ of the square is shaded, what is the total area of the unshaded figure? (Take π = ²²₇)