GEOMETRY AND TRIGONOMETRY - Jamb Mathematics Past Questions and Answers

Question 286:

• JAMB 1987

The figure is an example of the construction of a

A. Perpendicular bisector of a given straight line QR
B. Perpendicular from a given point to a given line QR
C. Perpendicular to a line from a given point P on that line
D. Given angle

Question 287:

• JAMB 1988

Four interior angles of a pentagon are 90^o - x^o, 90^o + x^o, 110^o - 2x^o, 110^o + 2x^o. Find the fifth interior angle

A. 110^o
B. 120^o
C. 130^o
D. 140^o

Question 288:

• JAMB 1988

For which of the following exterior angles is a regular polygon possible? i. 35° ii. 18° iii. 15°

A. I and ii
B. Ii only
C. Ii and iii
D. Iii only

Question 289:

• JAMB 1988

If cot \(\theta\) = \(\frac{x}{y}\), find cosec\(\theta\)

A. \(\frac{1}{y}\)(x² + y²)
B. \(\frac{x}{y}\)
C. \(\frac{1}{y}\)\(\sqrt{x^2 + y^2}\)
D. \(\frac{x - y}{y}\)

Question 290:

• JAMB 1988

In triangle PQR, PQ = 1cm, QR = 2cm and PQR = 120^o Find the longest side of the triangle

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