Key things to remember today
We are going to need to remember that a Full angle is 360º.
All angles that make up a circle will add up to 360º.
Lets look at the following problem.
We need to find the value of e.
First we need to remember how many degrees are in a circle. How many are there?
Next step - we need to know what the angles that we know add up to.
So we know the 2 angles are 146º and 117º. So lets add them together.
Remember to use the column method to help you.
146 + 117 = 263.
Final step - to work out the value of e we now need to take 263º away from the 360º we know are in the full circle to work out the missing value.
360 - 263 = 97
This must mean then that the value of e is 97º.
Home learners please could you take a photo of your answered questions and email it to Mr Hindman on Purple Mash.