1.

In the following figure, ABCD is square and AED is an equilateral triangle. Find the value of a.A. `30^@`B. `45^@`C. `60^@`D. `75^@`

Answer» Correct Answer - D
Diagonal of a square bisects the angles at the vertices.
`angle FDC 30^@ and angle FCD =45 ^@`.


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