You already indicate the triangular base, so how could it be 7 inches "long"?
Proof read your posts.
Jennifer got a box of chocolates. The box is a right triangular prism shaped box. It is 7 inches long, and the triangular base measures 3in x 4in x 5in. What is the surface area of the box of chocolates
2 answers
Notice that the base is a right-angled triangle, since 3^2 + 4^2 = 5^2
the area of the base is (1/2)(3)(4) = 6 in^2
Remember you have the top also, same area
Then you have 3 long rectangles, you know the length of each is 7 and the widths are 3, 4, and 5
the area of the base is (1/2)(3)(4) = 6 in^2
Remember you have the top also, same area
Then you have 3 long rectangles, you know the length of each is 7 and the widths are 3, 4, and 5
2 answers