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Sam is making a square pyramid out of cardboard. He drew a diagram of the square pyramid he is making as shown below. Based on Sam's diagram, how many square inches of cardboard make up his square pyramid?


9 square inches


20 square inches


24 square inches


28 square inches

Sam is making a square pyramid out of cardboard He drew a diagram of the square pyramid he is making as shown below Based on Sams diagram how many square inches class=

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Answer:

9 square

Step-by-step explanation:

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380920

Answer:

24 square inches

Step-by-step explanation:

Required number of square inches of cardboard =

                                                          =area of central square+

                                                                     4 x area of each triangle shape

                                        =2 x 2 + 4 x { 1/2 x 2 x 5 }

                                       = 4  + 4 x {5}

                                         = 4 + 20

                                       = 24 square inches

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