# Trapezoidal prism

Calculate the surface of the quadrilateral prism ABCDA'B'C'D' with the trapezoidal base ABCD. The height of the prism is 12 cm; ABCD trapezoidal data: AB base length is 8 cm, CD base length is 3 cm, BC arm length is 4 cm, and AC diagonal length is 7 cm.

Little help: Draw the trapezoid ABCD and measure its height and the arm AD.

Little help: Draw the trapezoid ABCD and measure its height and the arm AD.

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