The locus of the circumcentre of ∆ QAB if q = p/4 is:

Circles

Circumcentre

Grade 11

Question:

The locus of the circumcentre of ∆QAB if q = p/4 is:

(a) x/4 + y/3 = 3

(b) x/4 + y/3 = 1/2

(c) x² + y² = 6

(d) x/3 + y/4 = 1/2

Key Concept: Find the locus of circumcentre by using the constraint that the circumcentre is equidistant from all three vertices of the triangle.

Answer: (b)

Correct Answer: B