Questions

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26 P6.RA.TL.17042609

Level 3
The figure is made up of two squares and a triangle. The ratio of the area of Triangle X to that of Square Z is 11 : 1. The ratio of the shaded area to that of the unshaded area is 1 : 3. If the difference between areas of Triangle X and Square Y is 464 cm², what is the area of Square Z?

3 m

Attempt

27 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

Ratio to units Area perimeter Square Rectangle Overlapping area Unchanged difference Units table

28 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

29 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

30 P6.AG.NK.21061107

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