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Mathematics, 22.01.2020 18:31 gracebuffum

The surface area of which composite figure is the sum of the areas of eight triangular faces?

atwo rectangular pyramids joined at their congruent bases

btwo rectangular pyramids joined at two congruent lateral faces

ctwo triangular prisms joined at their congruent bases

dtwo triangular prisms joined at two congruent lateral faces plz me ; c

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