Review question

# Can we find the tangents to this circle from the origin? Add to your resource collection Remove from your resource collection Add notes to this resource View your notes for this resource

Ref: R5903

## Question

Find the equation of the circle through the points $A(2,0)$, $B(8,0)$, and $C(10,4)$, and prove that it touches the $y$-axis.

Without the use of tables [or calculators] or measurement, find the equation of the other tangent to this circle from the origin.