Loci - Jamb Mathematics Past Questions and Answers

Question 16:

• JAMB 1987

In the diagram above, QR // TS, QR : TS = 2.3, Find the ratio of the area of triangle PQR to the area of the trapezium QRST.

A. 4:9
B. 4:5
C. 1:3
D. 2:3

Question 17:

• JAMB 1990

The locus of a point which moves so that it is equidistant from two intersecting straight lines is the

A. Perpendicular bisector of the two lines
B. Angle bisector of the two lines
C. Bisector of the two lines
D. Line parallel to the two lines

Question 18:

• JAMB 1992

The locus of a point which is equidistant from two given fixed points is the

A. Perpendicular bisector of the straight line joining them
B. Parallel line to the straight line joining them
C. Transverse to the straight line joining them
D. Angle bisector of 90^o which the straight line joining them makes with the horizontal

Question 19:

• JAMB 1993

The three sides of an isosceles triangle are length of lengths (x + 3), (2x + 3), (2x - 3) respectively. Calculate x.

A. 5
B. 1
C. 3
D. 6

Question 20:

• JAMB 1994

What is the locus of a point P which moves on one side of a straight line XY, so that the angle XPY is always equal to 90^o?

A. The perpendicular bisector of XY
B. A right-angled triangle
C. A circle
D. A semi circle