Solution

154213

First name
Ronan
School
St Stephens School
Country
Age
12
Email address
ronan.fitzgerald@student.ststephens.wa.edu.au

Maths Angles

To figure out the angles on the around the middle of the shape, I divided 9 by 360. This is because I know the full circle is 360 degrees and there were 9 different angles. This brought me to find out that all the angles around the middle of the shape are 40 degrees each.

To find these yellow angles I divided the 360 (degrees around the circle) by 3 (the amount of angles around the circle. I found that the yellow angles equal to 120 degrees each.

To figure out these green angles, I looked at the previous yellow angles and the middle angles that I had just done. As there are four angles in the kite, they all have to add up to 360 degrees. The other angles in the kite add up to 280 degrees. This means the angle inside that shape has to be 80 degrees. The vertically opposite angle must be the same. The two 80 degrees adds up to 160 which means we need 200 degrees from the other two angles. This means the other angles are 100 degrees each.