GEOMETRY AND TRIGONOMETRY - Jamb Mathematics Past Questions and Answers

Question 191:

• JAMB 1982

The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two parts by a plane parallel to the base midway between the base and the vertex, the volumes of the two sections are

A. (21cm³, 3cm³)
B. (24cm³, 3cm³)
C. (24cm³, 21cm³)
D. (72cm³, 9cm³)
E. (63cm³, 9cm³)

Question 192:

• JAMB 1982

A side of a rhombus is 2cm in length. An angle of the rhombus is 60^o. What is the length of the diagonal facing this angle?

A. 2cm
B. 8cm
C. 4cm
D. 2\(\sqrt{3}\)cm
E. 16cm

Question 193:

• JAMB 1982

Two distinct sectors i the same circle substend 100^o and 30^o respectively at the centre of the circle. Their corresponding arcs are in ratio

A. 10:3
B. 1:100
C. 3:1
D. 5:2

Question 194:

• JAMB 1982

In the diagram, angle QPR = 90^o, angle PSR = 90^o and PR = 5 units. Find the length of QS.

A. 5 tan 25^o sin 65^o
B. 5 cos 25^o sin 65^o
C. 5 tan 25^o cos 65^o
D. Cos 25^o cos 65^o
E. 5 cosec 25^o

Question 195:

• JAMB 1982

The diagram is the distance time graph of a vehicle. Find its average speed in kilometers per hour during the journey

A. 155km/hr
B. 50km/hr
C. 40km/hr
D. 124km/hr
E. 84km/hr