Question

What is the surface area of this rectangular prism?

Answer 1

Answer:

96cm

Step-by-step explanation:

For a triangular prism we find the surface area by doing base times height/ length times width, but since we have a triangle we would have to divide the answer we get by 2. Once we get all the sides we then would have to add them all up.

front                back                                                               top                                                                                                                                                                              

3X4X1/2         ( HINT: ITS THE SAME AS THE FRONT)      7X5            

12X1/2             6= back                                                          35= top                                

6= front

Bottom                     side                  since we are done finding all    

7X4                           3X7                            of the area of the shapes we add

28= bottom              21= side                       all of them together.

Surface area= 6+6+35+28+21= 96 cm