Can you complete the missing angles in this interactive worksheet from Transum?
To see why angles in a triangle add up to 180 degrees see this demo.
Can you complete the missing angles in this interactive worksheet from Transum?
To see why angles in a triangle add up to 180 degrees see this demo.
This very neat animation shows why angles in a triangle always add up to 180 degrees.
http://www.echalk.co.uk/Maths/triangle/angleSum.html
Have a go at working out the missing angles in these triangles.