GEOMETRY AND TRIGONOMETRY - Jamb Mathematics Past Questions and Answers

Question 316:

• JAMB 1990

The angle of a sector of s circle, radius 10.5cm, is 48 ^o, Calculate the perimeter of the sector

A. 8.8cm
B. 25.4cm
C. 25.6cm
D. 28.8cm

Question 317:

• JAMB 1990

Find the length of a side of a rhombus whose diagonals are 6cm and 8cm

A. 8cm
B. 5cm
C. 4cm
D. 3cm

Question 318:

• JAMB 1990

Each of the interior angles of a regular polygon is 140^o. How many sides has the polygon?

A. 9
B. 8
C. 7
D. 5

Question 319:

• JAMB 1990

If Cos \(\theta\) = \(\frac{12}{13}\). Find \(\theta\) + cos²\(\theta\)

A. \(\frac{169}{25}\)
B. \(\frac{25}{169}\)
C. \(\frac{169}{144}\)
D. \(\frac{144}{169}\)

Question 320:

• JAMB 1990

A cylinder pipe, made of metal is 3cm thick.If the internal radius of the pope is 10cm.Find the volume of metal used in making 3m of the pipe.

A. 153\(\pi\)cm³
B. 207\(\pi\)cm³
C. 15 300\(\pi\)cm³
D. 20 700\(\pi\)cm³