Any point P with coordinates (\(x, y\)) on the circumference of a circle ... find \(m\) , the gradient of the tangent. On a diagram, draw the circle and the tangent at the point P (3, -4) and ...

Circle theorems are ... and to learn to identify them in the diagrams. The angle subtended by an arc at the centre is twice the angle subtended at the circumference. More simply, the angle at ...