1.

In the following figure, if the area of the shaded region (the smaller pentagon) is ((7-3sqrt5)/2) sq. cm, Find the area of the larger regular pentagon. (##AHT_SKV_QCT_C12_E07_097_Q01.png" width="80%">

Answer»

1 sq. CM
`((47+21sqrt5)/2)` sq. cm
`((7+3sqrt5)/2)` sq. cm
none of these

Answer :A


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