Polygons - Mathematics Jamb Past Questions and Answers

Question 46 :

• JAMB 2011

What is the size of each interior angle of a 12-sided regular polygon?

A. 120^o
B. 150^o
C. 30^o
D. 180^o

Question 47 :

• JAMB 2012

The angles of a polygon are given by x, 2x, 3x, 4x and 5x respectively. Find the value of x.

A. 24^o
B. 30^o
C. 33^o
D. 36^o

Question 48 :

• JAMB 2013

If the angles of a quadrilateral are (3y + 10)°, (2y + 30)°, (y + 20)° and 4y°. Find the value of y.

A. 66°
B. 12°
C. 30°
D. 42°

Question 49 :

• JAMB 2014

How many sides has a regular polygon whose interior angle is 135°?

A. 12
B. 10
C. 9
D. 8

Question 50 :

• JAMB 2015

How many sides has a regular polygon whose interior angles are 120°each

A. 4
B. 5
C. 6
D. 3