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Form 4 Mathematics Paper 1 Exam Revision Questions With Answers

The figure below shows a circle centre O and radius R cm. The minor arc AB subtends an angle of 105˚ at the centre of the circle and the corresponding sector AOB has an area of # 528cm^2#. (Take π=22/7)

a) Find the radius R of the circle.
b) The sector is removed and folded into a cone, calculate:
i. the area of the cone so formed.
ii. to 2 decimal places the height of the cone.
iii. to the nearest whole number, the volume of the cone.

(6m 6s)

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81. The sum of the interior angles of an n-sided polygon is 1080°. Find the value of n and hence deduce the name of the polygon.
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83. A straight line passes through the points P (5 , 3) and Q(0 , 6). Find equation of the line in the form y = mx + c and hence find its double intercept equation.
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