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  1. ABC is an isosceles right angled triangle with ∠B = 90°. On the sides AC and AB, two equilateral triangles ACD and ABE have been constructed. The ratio of area of ∆ABE and ∆ACD is
    1. 1 : 3
    2. 2 : 3
    3. 1 : 2
    4. 1 : √2
Correct Option: C

Using Rule 6,

AB = x units
BC = x units
AC = 2 x units [Using Pythagorus]

∆ABE
∆ACD

=
3
4
3
(√3x)²
4

=
1
= 1 : 2
2



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