Categorising and defining polygons

Categorising and defining polygons

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Lesson details

Key learning points

  1. In this lesson, we will learn about the key terminology involved in describing polygons, and begin to categorise polygons, based on certain properties.

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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.
The total sum of the interior angles in a triangle is...
Correct answer: 180 degrees
360 degrees
45 degrees
90 degrees
Q2.
A right angled triangle with one angle as 23 degrees would mean the remaining interior angle would be...
157 degrees
180 degrees
Correct answer: 67 degrees
77 degrees
Q3.
In an equilateral triangle, each interior angle would be equal to...
180 degrees
3 degrees
Correct answer: 60 degrees
90 degrees
Q4.
If a base angle of an isosceles triangle was 34 degrees, what would the other base angle be?
146 degrees
Correct answer: 34 degrees
56 degrees
66 degrees
Q5.
If the base angles of an isosceles triangle were 34 degrees, what would the unknown angle be?
Correct answer: 112
34
66
68

5 Questions

Q1.
Which of the following statements most accurately describes an 'obtuse angle'?
An angle less than 90 degrees
An angle that is 90 degrees
Correct answer: An angle that is between 90-180 degrees
An angle that is greater than 180 degrees
Q2.
Which of the following statements most accurately describes an 'acute angle'?
Correct answer: An angle less than 90 degrees
An angle that is 90 degrees
An angle that is between 90-180 degrees
An angle that is greater than 180 degrees
Q3.
Which of the following statements most accurately describes a 'regular polygon'
A shape with 2 or less sides that are equal
A shape with 2 or less sides that are not equal
Correct answer: A shape with 3 or more sides that are equal
A shape with 3 or more sides that are not equal
Q4.
A rhombus is an example of a...
Hexagon
Nonagon
Correct answer: Quadrilateral
Triangle
Q5.
Another word for a regular quadrilateral would be...
Rectangle
Rhombus
Correct answer: Square
Trapezium

Lesson appears in

UnitMaths / Angles in polygons