Remember, to find the equation of a line you need a point \((a,b)\) and the gradient \(m\). This determines the gradient of the required line. Use B\((6,3)\) and \(m\). The perpendicular bisector ...

Identify the base and the perpendicular height of the triangle. They must be measured in the same units. Substitute the base and height into the formula. Perform the calculation in one of three ...