MATHEMATICS
JAMB 2006 - Question 27
Mathematics 2006 JAMB Past Questions - Question 27: In the diagram above ,|QR| is the diameter of the semicircle QR.find the area of the figure to the nearest whole number .
Choose the most appropriate option for the gap .
A:
B:
C:
D:
Correct Answer
C
Explanation
Area of PQRS = Lenghth x Breadth (7x10)cmsup2 = 70Area of semi circle 1/2rπsup2 = 1/2 x 22/7 x 1/2 x 7/2=19.5cmsup2 =20cmsup2(appr.)Area of the figure = (70+20)cmsup2 = 90cmsup2
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