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Grade 4 · Worksheet
Types of triangles
What is a triangle with all three sides equal called?
How many equal sides does an equilateral triangle have?
A triangle has sides 5 cm, 5 cm and 8 cm. What type is it?
An equilateral triangle has three equal sides and three equal angles.
A triangle has sides 3 cm, 3 cm and 3 cm. What type is it?
A triangle has sides 6 cm, 6 cm and 6 cm. What type is it?
A triangle has sides 8 cm, 8 cm and 8 cm. What type is it?
A triangle has sides 11 cm, 11 cm and 11 cm. What type is it?
A triangle has sides 14 cm, 14 cm and 14 cm. What type is it?
A triangle has sides 16 cm, 16 cm and 16 cm. What type is it?
A triangle has sides 4 cm, 4 cm and 6 cm. What type is it?
A triangle has sides 9 cm, 9 cm and 6 cm. What type is it?
A triangle has sides 4 cm, 6 cm and 9 cm. What type is it?
What type of angle is 115°?
How many degrees is a quarter turn?
What type of angle is 154°?
A triangle has sides 6 cm, 8 cm and 11 cm. What type is it?
Which angle is bigger, 157° or 54°?
A triangle has sides 7 cm, 8 cm and 10 cm. What type is it?
Select all the statements that are true of an EQUILATERAL triangle.

2D shape and pattern — Types of triangles