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expeople1 [14]
2 years ago
6

Pls help I don’t understand

Mathematics
2 answers:
Kobotan [32]2 years ago
4 0

Answer:

That would be 2916In^2

Step-by-step explanation:

Surface area of composite figure = 1888 + 1028                                                          = 2916 square inches

ollegr [7]2 years ago
3 0

Answer:

2916 square inches

Step-by-step explanation:

Surface area of rectangular prism:

Here, area of the top of the prism is not included.

l = 24 in ; b = 20 in ; h = 16 in

Surface area = lb + 2bh + 2lh

                    = 24 * 20 + 2*20*16 + 2*24 *16

                    = 480 + 640 + 768

                    = 1888 sqaure inches

Surface area of triangular prism:

length = 24 in ; a = b = 16 in  ;  base = 20 in and height = 13 in

\sf \text{Base area=$2*\dfrac{1}{2}*base *height = base *height$}

                = 20 * 13

                  = 260 square inches

Surface area = length*(a +b) + base area

                     = 24*(16+16) + 260

                     = 24 * 32 + 260

                      = 768 + 260

                      = 1028 square inches

Surface area of composite figure = 1888 + 1028

                                                          = 2916 square inches

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