Geometry And Trigonometry Jamb Mathematics Past Questions
Question 36
The angle of a sector of s circle, radius 10.5cm, is 48°, Calculate the perimeter of the sector
- A. 8.8cm
- B. 25.4cm
- C. 25.6cm
- D. 29.8cm
Question 37
Find the length of a side of a rhombus whose diagonals are 6cm and 8cm
- A. 8cm
- B. 5cm
- C. 4cm
- D. 3cm
Question 38
In XYZ, y = z = 30° and XZ = 3cm. Find YZ
- A. \(\frac{\sqrt{3}}{2}\) cm
- B. 3\(\frac{\sqrt{3}}{2}\) cm
- C. 3\(\sqrt{3}\) cm
- D. 2\(\sqrt{3}\) cm
Question 39
The pilot of an aeroplane, flying 10km above the ground in the direction of a landmark, views the landmark to have angles of depression of 35°and 55°. Find the distance between the two points of observation
- A. 10(sin 35° - sin 55°)
- B. 10 cos35° - cos 55°
- C. 10(tan35° - tan55°)
- D. 10(cot35° - cot55°)
Question 40
OXYZW is a pyramid with a square base such that OX = OY= OZ = OW = 5cm and XY = XW = YZ = WZ = 6cm. Find the height OT
- A. 2\(\sqrt{5}\)
- B. 3
- C. 4
- D. 4\(\sqrt{3}\)
