A triangular prism on top of a rectangular prism.
Faces:
Triangles (2): A = 1/2(5)(7)
Rectangles: 2 are 6 by 6; 2 are 5 by 6; 2 are 7 by 5; 1 is 6 by 7
What is the surface area of the composite figure shown?
107 square feet
172 square feet
279 square feet
321 square feet