Oxford PAT 2011, Question 4


2 thoughts on “Oxford PAT 2011, Question 4

    1. It will be a few days before I can scan anything in so in the meantime I will try to describe the diagram in more detail.

      Look at the big right angled triangle that I have drawn (this represents one of the quarters of the rhombus). The radius of the circle touches the hypotenuse of the triangle and makes a right angle with it (because it is the tangent to the circle drawn in the question). This line splits the big triangle up into two: one small one at the bottom and a tiny one at the top. The tiny triangle shares an angle with the big one (top right), and they both also have a right angle, therefore all three of their angles are the same, and so they are similar.

Add your comments

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s