Polygons - Jamb Mathematics Past Questions and Answers

Question 36:

• JAMB 2002

The sum of the interior angles of a polygon is 20 right angles. How many sides does the polygon have?

A. 12
B. 20
C. 40
D. 10

Question 37:

• JAMB 2004

The sum of the interior angles of a pentagon is 6x + 6y. Find y in the terms of x

A. Y = 90 - x
B. Y = 150 - x
C. Y = 60 - x
D. Y = 120 -x

Question 38:

• JAMB 2004

PQRSTV is a regular polygon of side 7 cm inscribed in a circle. Find the circumference of the circle PQRSTV.

A. 56 cm
B. 22 cm
C. 42 cm
D. 44 cm

Question 39:

• JAMB 2005

The sum of the interior angle of a regular polygon is 1800^o. Calculate the size of one exterior angle of the polygon

A. 30^o
B. 24^o
C. 18^o
D. 12^o

Question 40:

• JAMB 2006

In the diagram above, find the value of x

A. 55^o
B. 50^o
C. 45^o
D. 40^o