Circle - Jamb Mathematics Past Questions and Answers

Question 81:

• JAMB 2001

The chord ST of a circle is equal to the radius, r, of the circle. Find the length of arc ST.

A. πr/6
B. πr/2
C. πr/12
D. πr/3

Question 82:

• JAMB 2003

XYZ is a circle with center O and a radius 7cm. Find the area of the shaded region.

A. 84cm²
B. 77cm²
C. 38cm²
D. 14cm²

Question 83:

• JAMB 2003

In the diagram above, PQR is a straight line and PS is a tangent to the circle QRS with /PS/ = /SR/ and ∠ SPR = 40°. Find ∠ PSQ

A. 40^o
B. 30^o
C. 20^o
D. 10^o

Question 84:

• JAMB 2003

In the diagram PQR is a straight line and PS is a tangent to the circle < QRS with |PS| = |SR| and < SPR = 40°. Find PSQ

A. 20^o
B. 40^o
C. 10^o
D. 30^o

Question 85:

• JAMB 2004

Find the value of x in the figure above

A. 15√6
B. 20√6
C. 3√6
D. 5√6