Area Problems
The diameter of a circle is 105 cm less than the circumference. What is the diameter of the circle?

49 cm
48 cm
44 cm
46 cm

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Area Problems
If the area of an equilateral triangle is x and its perimeter is y, then which one of the following is correct?

y4 = 432 x2
y4 = 216 x2
None of these
y2 = 432 x2

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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?

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

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