It'd be D because twice the radius(16)would be the length of one side(32) and area for a square is side times side so it would be 1,024 ft^2
Hope that helped
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Mohandas Gandhi adopted his creed of nonviolence and respect for human life from the religious doctrines of D) Buddhism and also C) Jainism. He grew up within the Hindu faith but adopted elements of other faiths in his struggles for civil disobedience.