BECE Mathematics 2018 Paper

Concept:The diagram shows the construction used to drop a perpendicular from an external point $P$ to a line $AB$.Explanation:From point $P$, an arc is drawn to cut line $AB$ at two points.Then, using those two intersection points as centres, arcs are drawn below the line.These arcs meet at a point that helps locate the foot of the perpendicular.A straight line is then drawn from $P$ to meet $AB$ at a right angle.This is exactly the construction of a perpendicular from $P$ to line $AB$.Answer:B. Construction of perpendicular from $P$ to meet line $AB$.