Area Problems
The radius of a circle has been reduced from 9 cm to 7 cm . the appropriate percentage decrease in area is?

39.5 %
65.5 %
31.5 %
34.5 %

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Area Problems
A parallelogram has sides 60 m and 40 m and one of the diagonal is 80 m long. Then its area is?

600? 15 sq. m
480 sq. m
320 sq. m
450 ? 15 sq. m

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Area Problems
The perimeter of an isosceles triangle is equal to 14 cm . The lateral side is to the base in the ratio 5 : 4 the area of the triangle is?

3/2?21 cm2
2?21 cm2
1/2?21 cm2
?212

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