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Earn 100

Show that for , where is the area of triangle.
Important Questions on Properties of Triangles
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In a , points and are on and , respectively, such that is parallel to . Which of the two following equalities always hold? (Here, denotes the area of ).
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In the figure given below, if the areas of the two regions are equal then which of the following is true?


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Suppose we have two circles of radius each in the plane such that the distance between their centres is . The area of the region common to both circles lies between

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HARD
In the figure given below, is a regular hexagon of side length unit, and are squares. Then the ratio equals

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HARD

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