A cross section passing through the diagonals of opposite faces of a cube with edges that are 7 inches long and a
diagonal that is approximately 10 inches
a cross section parallel to the base of a cube whose edges are
8 inches long
a cross section perpendicular to the base and passing
through the diagonals of the base and opposite face of a
right rectangular prism that is 24 inches wide, 7 inches long,
and 12 inches tall and measures 25 inches along the
diagonal of the base
a cross-section parallel to the base of a right rectangular prism
that is 3 inches long, 7 inches wide, and 11 inches tall
Area

21 square inches

64 square inches

70 square inches

300 square inches