Circle - Jamb Mathematics Past Questions and Answers

Question 51:

• JAMB 1993

In the diagram, O is the centre of the circle and POQ a diameter. If POR = 96^o, find the value of ORQ.

A. 84^o
B. 48^o
C. 45^o
D. 42^o

Question 52:

• JAMB 1993

In the diagram, QP//ST:PQR = 34^o qrs = 73^o and Rs = RT. Find SRT

A. 68^o
B. 102^o
C. 107^o
D. 141^o

Question 53:

• JAMB 1993

In the figure, PT is a tangent to the circle at U and QU/RS if TUR = 35^o and SRU = 50^o find x

A. 95^o
B. 85^o
C. 50^o
D. 35^o

Question 54:

• JAMB 1993

In the figure, the line segment ST is tangent to two circles at S and T. O and Q are the centres of the circles wih OS = 5cm. QT = 2cm and OR = 14cm. Find ST

A. 7 \(\sqrt{3}\)cm
B. 12.9cm
C. \(\sqrt{87}\)cm
D. 7cm

Question 55:

• JAMB 1994

If three angles of a quadrilateral are (3y - x - z)^o, 3x^o, (2z - 2y - x)^o find the fourth angle in terms of x, y and z

A. (360 - x- y - z)^o
B. (360 + x + y - z)^o
C. (180 - x + y + z)^o
D. (180 - x + y + z)^o