Loci - Jamb Mathematics Past Questions and Answers

Question 6:

• JAMB 2016

In the cyclic quadrilateral above . Find < PRO

A. 70^o
B. 20^o
C. 50^o
D. 30^o

Question 7:

• JAMB 2014

The locus of a dog tethered to a pole with a rope of 4m is a

A. Circle with diameter 4m
B. Circle with radius 4m
C. Semi-circle with diameter 4m
D. Semi-circle with radius 4m

Question 8:

• JAMB 2013

The radius of a circle is increasing at the rate of 0.02cms^-1. Find the rate at which the area is increasing when the radius of the circle is 7cm.

A. 0.75cm²S^-1
B. 0.53cm²S^-1
C. 0.35cm²S^-1
D. 0.88cm²S^-1

Question 9:

• JAMB 2013

The locus of the points which is equidistant from the line PQ forms a

A. Perpendicular line to PQ
B. Circle centre P
C. Circle centre Q
D. Pair of parallel lines to PQ

Question 10:

• JAMB 1978

A man runs a distance of 9km at a constant speed for the first 4 km and then 2 km\h faster for the rest of the distance. The whole run takes him one hour. His average speed for the first 4 km is

A. 6 km/h
B. 8 km/h
C. 9 km\h
D. 11 km\h
E. 13 km\h