Mensuration - Jamb Mathematics Past Questions and Answers

Question 81:

• JAMB 1993

Calculate the length in cm. of the area of a circle of diameter 8cm which subtends an angle of 22\(\frac{1}{2}\)^o at the centre of the circle

A. 2\(\pi\)
B. \(\pi\)
C. \(\frac{2}{3}\)
D. \(\frac{\pi}{2}\)

Question 82:

• JAMB 1993

find the radius of a sphere whose surface area is 154cm² (\(\pi = \frac{22}{7}\))

A. 7.00cm
B. 3.50cm
C. 3.00cm
D. 1.75cm

Question 83:

• JAMB 1993

Find the area of the sector of a circle with radius 3m, if the angle of the sector is 60^o

A. 4.0m²
B. 1m²
C. 4.7m²
D. 5.0m²

Question 84:

• JAMB 1993

If two angles of a triangle are 30° each and the longest side is 10cm. Calculate the length of each of the other sides.

A. 5cm
B. 4cm
C. 3√3 cm
D. \(\frac{10\sqrt{3}}{3}\)cm

Question 85:

• JAMB 1993

In the diagram, QPS = SPR, PR = 9cm. PQ = 4cm and QS = 3cm, find SR.

A. 6\(\frac{3}{4}\)cm
B. 3\(\frac{3}{8}\)cm
C. 4\(\frac{3}{8}\)cm
D. 2\(\frac{3}{8}\)cm