To Compare and Classify Isosceles and Scalene Triangles

To Compare and Classify Isosceles and Scalene Triangles

Lesson details

Key learning points

  1. In this lesson, we will revise the names of different types of triangles. We will look at what they have in common with each other and what makes them different. We will learn the properties of various types of triangles and use correct mathematical vocabulary to describe the features and properties of each. We will focus on scalene and isosceles triangles.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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5 Questions

Q1.
All triangles have how many sides?
Correct answer: 3
4
5
Q2.
Angles in a triangle add up to how many degrees?
160°
Correct answer: 180°
190°
Q3.
All sides in an equilateral triangle are?
Correct answer: Equal
Opposite
Short
Q4.
In a right angled triangle, the side opposite the right angle is always _____________.
parallel
Correct answer: the longest
the shortest
Q5.
Triangles can have 2 parallel sides?
Always true
Correct answer: Never true
Sometimes true

6 Questions

Q1.
What kind of triangle has 3 identical sides?
Correct answer: Equilateral
Right angled
Scalene
Q2.
Which type of triangle has no equal vertices?
Equilateral
Right angled
Correct answer: Scalene
Q3.
What kind of triangle is this:
Equilateral
Correct answer: Isosceles
Scalene
Q4.
Which type of triangle has one angle that measures 90 degrees?
isosceles
Correct answer: right angled
scalene
Q5.
If one side of an equilateral triangle measures 9cm, what is it's perimeter?
21cm
Correct answer: 27cm
36cm
Q6.
Triangles have 3 equal length sides.
Always true
Never true
Correct answer: Sometimes true

Lesson appears in

UnitMaths / 2-D Shape and Symmetry