What do you know about the angles of these shapes?
They are all right angles!
So what do you know about the angles of these two triangles?
If we know that the corners of a square are right angles (90 degrees), we can halve this to find the missing angles in the triangles.
We also know that there are 180 degrees in a straight line.
Working Towards- Target Your Maths- Page 119 A
Expected- Target Your Maths- Page 119 B
Greater Depth- Target Your Maths- Page 119 C