Geometry And Trigonometry Jamb Mathematics Past Questions
Question 46
What is the circumference of latitude 0°S if R is the radius of the earth?
- A. R cos\(\theta\)
- B. 2\(\pi\) R cos \(\theta\)
- C. R sin \(\theta\)
- D. 2\(\pi\) R sin \(\theta\)
Question 47
A regular polygon of n sides has 160° as the size of each interior angle. Find n
- A. 18
- B. 16
- C. 14
- D. 12
Question 48
An arc of a circle of radius 6cm is 8cm long. Find the area of the sector
- A. 5\(\frac{1}{3}\)cm2
- B. 24cm2
- C. 36cm2
- D. 84cm2
Question 49
In \(\bigtriangleup\) XYZ, XY = 13cm, YZ = 9cm, XZ = 11cm and XYZ = \(\theta\). Find cos\(\theta\)°
- A. \(\frac{4}{39}\)
- B. \(\frac{43}{39}\)
- C. \(\frac{209}{3}\)
- D. \(\frac{43}{78}\)
Question 50
If the hypotenuse of right angled isosceles triangle is 2, what is the length of each of the other sides?
- A. \(\sqrt{2}\)
- B. \(\frac{1}{2}\)
- C. 22
- D. 1
- E. 2 - 1
