Euclidean Geometry - Jamb Mathematics Past Questions and Answers

Question 81:

• JAMB 1985

Find the area of a regular hexagon inscribed in a circle of radius 8cm

A. 16\(\sqrt{3}\) cm³
B. 96\(\sqrt{3}\) cm³
C. 192\(\sqrt{3}\) cm³
D. 16\(\sqrt{3}\) cm²
E. 33cm²

Question 82:

• JAMB 1985

In \(\bigtriangleup\) XYZ, XKZ = 90^O, XK = 15cm, XY = 35cm and YK = 8cm. Find the area of \(\bigtriangleup\)XYZ

A. 190 sq.cm
B. 20 sq.cm
C. 210 sq.cm
D. 160sq.cm
E. 320sq.cm

Question 83:

• JAMB 1985

In the figure, MNQP is a cyclic quadrilateral. MN and Pq are produced to meet at X and NQ and MP are produced to meet at Y. If MNQ = 86^o and NQP = 122^o find (x^o, y^o)

A. 28^o, 36^o
B. 36^o, 28^o
C. 43^o, 61^o
D. 61^o, 43^o
E. 36^o, 43^o

Question 84:

• JAMB 1985

In the figure POQ is the diameter of the circle PQR. If PSR = 145^o, find x^o

A. 25^o
B. 35^o
C. 45^o
D. 125^o
E. 55^o

Question 85:

• JAMB 1986

A regular polygon of n sides has 160^o as the size of each interior angle. Find n

A. 18
B. 16
C. 14
D. 12