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An isosceles trapezium is circumscribed about a circle.One of the parallel sides is thrice the other.Find the area of the trapezium its perimeter is 8 units.
1. 2√3
2. 3√3
3. 4√3
4. 6√3
5. Cannot be determined
Solution:
x, 3x, 2x, 2x.
x = 1.
So sides = 1,3,2,2.
height= root (4-1)= root 3
so area =1/2 * 4* root 3= 2 root 3. option 1
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