Polygons - Jamb Mathematics Past Questions and Answers

Question 6:

• JAMB 2014

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

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

Question 7:

• 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 8:

• JAMB 1978

If the four interior angles of a quadrilateral are (p + 10)o, (p - 30)o, (2p - 450o, and (p + 15)o, then p is

A. 125^o
B. 82^o
C. 135^o
D. 105^o
E. 60^o

Question 9:

• JAMB 1978

A regular hexagon is constructed inside a circle of diameter 12cm. The area of the hexagon is

A. 36\(\pi\)cm²
B. 54\(\sqrt{3}\)cm²
C. \(\sqrt{3}\)cm²
D. \(\frac{1}{x - 1}\)

Question 10:

• JAMB 1978

In the figure, AB is parallel to CD then x + y + z is

A. 185^o
B. 200^o
C. 270^o
D. 360^o
E. 195^o