Questions

1 P6.FR.JO.21042205

Level 1 PSLE
The figure is made up of equilateral triangles. What fraction of the figure is shaded?

1 m

Attempt

2 P6.AG.JC.17080413

Level 1
The side of an equilateral triangle is 24k cm long. Find its perimeter.

1 m

Video Attempt

Algebra in 1 variable Algebra simplifying Area Perimeter Equilateral triangle

3 P5.AP.JM.17083120

Level 1 PSLE
In the square grid, P is a square, Q is a right-angled triangle and R is an equilateral triangle. Arrange P, Q and R from the smallest area to the largest.

1 m

Attempt

Square Equilateral triangle Right-angled triangle Square grid Min-max

4 P5.AN.JM.17083122

Level 1
In the figure, WXZ is an equilateral triangle and WZY is a straight line. ∠YXZ = 34°. Find ∠WYX.

1 m

Attempt

Equilateral triangle Angles sum of triangle

5 P5.AN.JM.17083166

Level 3
In the figure, ACDF is a parallelogram, BCDE is a rhombus and BED is an equilateral triangle.

Find ∠CDB.
Given that AF = AE and ∠BAK = 50°. Find ∠EAK.

5 m

Video Attempt

Equilateral triangle Parallelogram Rhombus Alternate angles

6 P6.AN.NK.21060918

Level 2 PSLE
In the figure, BCE is an equilateral triangle, ABCD is a trapezium with AD parallel to BC. ∠DAB = 66°. Find ∠ABE.

1 m

Attempt

Equilateral triangle Trapezium Interior angles

7 P6.AN.NK.21060920

Level 2 PSLE
In the figure, ABE is an equilateral triangle and BCDE is a rhombus ∠DAB = 38°. Find ∠CBE.

1 m

Attempt

Equilateral triangle Isosceles triangle Rhombus Angles sum of triangle Interior angles

8 P5.AN.NK.23041247

Level 2
ABC is an equilateral triangle and BCD is an isosceles triangle. DB = DC. Find ∠BDC.

2 m

Attempt

Equilateral triangle Isosceles triangle Angles sum of triangle

9 P5.AN.JM.17083196

Level 2
In the figure, KJN is a straight line. LMJ is an isosceles triangle and KJL is an equilateral triangle. Find ∠OJN.

2 m

Video Attempt

Right angle Equilateral triangle Isosceles triangle Angles on a straight line

10 P4.GE.JM.17092638

Level 2
The figure is made up of equilateral triangles. What is the least number of triangles should be shaded to form a symmetry with the dotted line?

2 m

Attempt

Symmetry Equilateral triangle Min-max

11 P6.AN.RA.17081609

Level 1 PSLE
In the figure, EFG is an equilateral triangle and ∠FGH = 70°. Find ∠a.

2 m

Video Attempt

Equilateral triangle Angles at a point

12 P6.AN.NK.21060924

Level 2 PSLE
ABCD is a trapezium, EA = EB and CBE is a straight line. Find ∠AEB.

2 m

Attempt

Equilateral triangle Isosceles triangle Parallelogram Trapezium Angles sum of triangle Alternate angles

13 P6.AP.TL.17090723

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

Attempt

Equilateral triangle Circumference Semicircle

14 P5.AN.JM.17083203

Level 2
The figure consists of a right-angled triangle PQR and an equilateral triangle RST. PRS and QRT are straight lines. Find ∠w.

2 m

Attempt

Equilateral triangle Vertically opposite angles Angles sum of triangle

15 P5.AN.JM.17083123

Level 2
Calculate the value of ∠HKG, given that triangle DEF is an equilateral triangle. ∠° = 38° and ∠DFH = 25°.

2 m

Attempt

Equilateral triangle Vertically opposite angles Angles sum of triangle

16 P6.AN.NK.21060909

Level 2 PSLE
A piece of paper in the shape of an equilateral triangle is folded along the dotted line as shown. Find ∠x.

2 m

Attempt

Equilateral triangle Angles sum of triangle Overlapping angles Folded figure

17 P5.RA.JM.17083127

Level 3
The figure, not drawn to scale, is made up of 3 equilateral triangles and 3 squares. Find the ratio of the length AB to the length CD to the length EF. (Express your answer in its simplest form).

3 m

Attempt

Finding ratio R Simplest form Area Perimeter Square & square root Equilateral triangle

18 P6.AP.TL.17090738

Level 2 PSLE
The shaded figure is formed using 3 squares and 3 equilateral triangles. The length of the straight line PQ is 15 cm. Find the perimeter of the shaded figure.