GEOMETRY AND TRIGONOMETRY - Jamb Mathematics Past Questions and Answers

Question 1:

• JAMB 1979

If the value of \(\pi\) is taken to be \(\frac{22}{7}\), the area of a semi-circle of diameter 42m is

A. 5544m²
B. 1386m²
C. 132m²
D. 264m²
E. 693m²

Question 2:

• JAMB 1979

In \(\bigtriangleup\)PQR, PQ = 10cm, QR = 8cm and RP = 6cm, the perpendicular RS is drawn from R to PQ. Find the length of RS

A. 4cm
B. 32cm
C. \(\frac{30}{7}\)
D. \(\frac{40}{7}\)
E. 4.8cm

Question 3:

• JAMB 2019

The angle of elevation of the top of a tree from a point on the ground 60m away from the foot of the tree is 78°. Find the height of the tree correct to the nearest whole number.

A. 148m
B. 382m
C. 282m
D. 248m

Question 4:

• JAMB 2019

Given \(\sin 58° = \cos p°\), find p.

A. 48°
B. 58°
C. 32°
D. 52°

Question 5:

• JAMB 2019

Find the length of the chord |AB| in the diagram shown above.

A. 4.2 cm
B. 4.3 cm
C. 3.2 cm
D. 3.4 cm