# Worksheet: Types of Triangles: Sides

In this worksheet, we will practice classifying triangles as equilateral, isosceles, or scalene by considering the lengths of their sides.

Q1:

What kind of triangles have all sides of the same length?

• Ascalene triangles
• Bequilateral triangles
• Cisosceles triangles
• Dright triangles

Q2:

If , , and , what is the type of in terms of its side lengths?

• Ascalene triangle
• Bisosceles triangle
• Cequilateral triangle

Q3:

What type of triangle is , in terms of its side lengths? • Aisosceles triangle
• Bscalene triangle
• Cequilateral triangle

Q4:

Suppose that in , we have , , and . What kind of triangle is this, in terms of its side lengths?

• Aan isosceles triangle
• Ban equilateral triangle
• Ca scalene triangle

Q5:

If , , and , what is the type of in terms of its side lengths?

• Ascalene triangle
• Bisosceles triangle
• Cequilateral triangle

Q6:

What type of triangle is , in terms of its side lengths? • Aisosceles triangle
• Bscalene triangle
• Cequilateral triangle

Q7:

Are the number of lines of symmetry of a scalene triangle less than, equal to or greater than the number of lines of symmetry of an isosceles triangle?

• AGreater than
• BEqual to
• CLess than

Q8:

Are the number of lines of symmetry of an isosceles triangles less than, equal to or greater than the number of lines of symmetry of an equilateral triangle?

• AEqual to
• BLess than
• CGreater than

Q9:

William drew an equilateral triangle with two sides whose sum equals 16 inches. Determine the length of the third side.

Q10:

Complete the following: An equilateral triangle is a triangle whose sides are .

• Aintersecting at one point
• Bequal in length
• Cnot equal in length
• Dparallel

Q11:

Is an equilateral triangle an isosceles triangle?

• Ayes
• Bno

Q12:

Could an isosceles triangle also be an equilateral triangle?

• Ano
• Byes