Area Problems
The perimeter of an equilateral triangle is 90 cm. Find its area.

225?3 sq cm
151?3 sq cm
135?3 sq cm
250?3 sq cm

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Area Problems
A park is in the form of a square one of whose sides is 100 m . The area of the park excluding the circular lawn in the centre of the park is 8614 m 2. The radius of the circular lawn is?

21 m
31 m
41 m
None of these

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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?

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

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