Year 8
These resources will be removed by end of Summer Term 2025.
Switch to our new teaching resources now - designed by teachers and leading subject experts, and tested in classrooms.
These resources were created for remote use during the pandemic and are not designed for classroom teaching.
Lesson details
Key learning points
- In this lesson, we will learn how to apply the generalisation of the total interior angles in an n-sided polygon.
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.
Loading...
5 Questions
Q1.
A megagon has how many sides?
10
100
10000
Q2.
How many internal triangles can be formed within a megagon?
10
1000
8
Q3.
How many internal triangles from a distinct point can be formed within an icosagon?
20
8
98
Q4.
The general formula for working out the total interior angles in a n-sided polygon is...
180(n-3)
360(n-2)
360n
Q5.
Using the formula, if I wanted to work out the total interior angles for a 360-sided shape, it would be...
360 degrees
64800 degrees
720 degrees
5 Questions
Q1.
If I split a 7 sided shape into 5 triangles, I have done the correct process to find the total interior angles within the shape.
False
Q2.
Which of the following WOULD give you the total interior angles within a n-sided polygon?
180n
360n
360n - 180
Q3.
Which of the following WOULD NOT give you the total interior angles of a n-sided polygon?
180(n - 2)
180n - 360
Q4.
The sum of the total interior angles in a 30 sided shape is...
504 degrees
540 degrees
5400 degrees
Q5.
What would be the correct calculation to work out the total sum of the interior angles in a decagon?
180(10)
360(10-2)
360(8)