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13-04-2021
Mathematics

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Find the surface area of the regular pyramid. Write your answer as a decimal.

It has a pentagonal base of 84.3 sq cm and the dimensions of the triangles are 7 cm across and 9 cm tall.

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13-04-2021

7x9=63/2=31.5

31.5x4= 126

7x7=49

126+49=175

The surface area of the pyramid would be 175cm^2

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