Find out the correct explanation of adaptation for osmoregulation in freshwater fish?

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#Question id: 12840

#General Aptitude

If D, E and F are the mid–points of the sides of an equilateral triangle ABC, then the ratio of the area of triangle DEF and DCF is :

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#Question id: 12841

#General Aptitude

In a triangle ABC, AB = 8 cm, AC= 10 cm and <B = 90°, then the area of DABC is

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#Question id: 12842

#General Aptitude

In figure, DE || BC. If DE = 3cm, BC = 6 cm and area of ADE= 15 sq. cm, then the area of DABC is

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#Question id: 12843

#General Aptitude

Triangle ABC is a right angled triangle,the radius of its circumcircle is 3cm and the length of its altitude drawn from the opposite vertex to the hypotenuse is 2 cm. Then the area of the triangle is

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#Question id: 12844

#General Aptitude

A piece of wire 132 cm. long is bent successively in the shape of an equilateral triangle, a square and a circle. Then area will be longest in shape of

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#Question id: 12845

#General Aptitude

The perimeter of a rhombus is 240 metre and the distance between any two parallel sides is 20 metre. The area of the rhombus in square metre is