Block 3 - Angles

Question 1

Polygons

Answer 1

The centre angle is dividing 360 by number of sides
The exterior angle is the same size as the centre

Question 2

Chord

Answer 2

If the triangle goes from the middle and they both touch the circle along the same points then the angles touching there are the same as each other

Question 3

In semicircle

Answer 3

If it goes all the way along the diameter and there’s one point out that point is always a right angle

Question 4

What is a tangent?

Answer 4

Touches the circle at one point only
A radius that touches the o point of contact will always be a right angle