Mensuration - Mathematics Jamb Past Questions and Answers

Question 146 :

• JAMB 2013

A chord of a circle subtends an angle of 120° at the centre of a circle of diameter \(4\sqrt{3} cm\). Calculate the area of the major sector.

A. 32\(\pi\) cm\(^2\)
B. 4\(\pi\) cm\(^2\)
C. 8\(\pi\) cm\(^2\)
D. 16\(\pi\) cm\(^2\)

Question 147 :

• JAMB 2013

In triangle PQR, q = 8 cm, r = 6 cm and cos P = \(\frac{1}{12}\). Calculate the value of p.

A. \(\sqrt{108}\) cm
B. 9 cm
C. \(\sqrt{92}\) cm
D. 10 cm

Question 148 :

• JAMB 2014

A cylindrical tank has a capacity of 6160m³. What is the depth of the tank if the radius of its base is 28cm?

A. 8.0m
B. 7.5m
C. 5.0m
D. 2.5m

Question 149 :

• JAMB 2015

Find the total surface area of a cylinder of base radius 5cm and length 7cm ( π = 3.14)

A. 17.8cm²
B. 15.8cm²
C. 75.4cm²
D. 54.7cm²
E. \(377.1cm^{2}\)

Question 150 :

• JAMB 2015

A pipe made of metal 10cm thick has an external radius of 11cm. find the area of metal in making 2.4cm of pipe

A. 24πcm²
B. 21πcm²
C. 15πcm²
D. 17πcm²