Jamb Mathematics 2021 Past Questions and Answers

Question 21:

• JAMB 2021

P (-6, 1) and Q (6, 6) are the two ends of the diameter of a given circle. Calculate the radius.

A. 6.5 units
B. 13.0 units
C. 3.5 units
D. 7.0 units

Question 22:

• JAMB 2021

The angle of a sector of a circle, radius 10.5cm, is 48°, Calculate the perimeter of the sector

A. 8.8cm
B. 25.4cm
C. 25.6cm
D. 29.8cm

Question 23:

• JAMB 2021

Find the length of a side of a rhombus whose diagonals are 6cm and 8cm

A. 8cm
B. 5cm
C. 4cm
D. 3cm

Question 24:

• JAMB 2021

Each of the interior angles of a regular polygon is 140°. How many sides has the polygon?

A. 9
B. 8
C. 7
D. 5

Question 25:

• JAMB 2021

A cylinder pipe, made of metal is 3cm thick.If the internal radius of the pipe is 10cm.Find the volume of metal used in making 3m of the pipe.

A. 153\(\pi\)cm³
B. 207\(\pi\)cm³
C. 15 300\(\pi\)cm³
D. 20 700\(\pi\)cm³