Mensuration - Mathematics Jamb Past Questions and Answers

Question 36 :

• JAMB 1980

A cylindrical motor of height 12cm has uniform thickness of 2cm. If the diameter of its outer cross section is 10cm, Find the volume of the constituent material. (take \(\pi\) = \(\frac{22}{7}\)

A. \(\frac{6600}{7}\)cm³
B. 270cm³
C. 660cm³
D. \(\frac{4224}{7}\)cm³
E. \(\frac{1980}{7}\)cm³

Question 37 :

• JAMB 1981

A cuboid has a diagonal of length 9cm and a square base of side 4cm. What is its height?

A. 9cm
B. \(\sqrt{65}\)cm
C. \(4\sqrt{2}\)cm
D. 7cm
E. 6.5cm

Question 38 :

• JAMB 1981

What is the area between two concentric circles of diameters 26cm and 20cm?

A. 100\(\pi\)
B. 169\(\pi\)
C. 69\(\pi\)
D. 9\(\pi\)
E. 269\(\pi\)

Question 39 :

• JAMB 1982

If f(x - 2) = 3x² + 4x + 1. Find the area of the sector

A. 8
B. 40
C. 7
D. 24
E. 32

Question 40 :

• JAMB 1982

A sector of a circle is bounded by two radii 7cm long and an arc length 6cm. Find the area of the sector.

A. 42cm²
B. 3cm²
C. 21cm²
D. 24cm²
E. 12cm²