GEOMETRY AND TRIGONOMETRY - Jamb Mathematics Past Questions and Answers

Question 141:

• JAMB 1979

If O is the centre of the circle, < POS equls

A. 70^o
B. 75^o
C. 105^o
D. 140^o
E. 150^o

Question 142:

• JAMB 1979

In the figure, PQ and QR are chords of the circle PQR. QRS is a straight line and PR is equal to RS, < PSR is 20^o. What is the size of

A. 70^o
B. 90^o
C. 80^o
D. 40^o
E. 60^o

Question 143:

• JAMB 1979

In the figure, PQ is parallel to SQ ; QS bisets < PSQ, < PQS is 65^o and < RPS is 20^o. What is the size of < PRS?

A. 45^o
B. 35^o
C. 40^o
D. 30^o
E. 42^o

Question 144:

• JAMB 1979

(Numbers indicate the lengths of the sides of the triangles) If the area of \(\bigtriangleup\) PQR is k2sq. units what is the area of the shades portion?

A. \(\frac{5}{9}\)k² sq. units
B. \(\frac{1}{3}\)k² sq. units
C. \(\frac{8}{9}\)k² sq. units
D. \(\frac{7}{9}\)k² sq. units
E. \(\frac{2}{3}\)k² sq. u

Question 145:

• JAMB 1979

In the parallelogram PQRS, PE is perpendicular to QR. Find the area of the parallelogram.

A. 60cm²
B. 65cm²
C. 72cm²
D. 144cm²
E. 156cm²