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A Paper weight has the shape of a regular triangular pyramid find the surface area of the paperweight put the answer in Square meters

Will Mark brainlest if correct

A Paper weight has the shape of a regular triangular pyramid find the surface area of the paperweight put the answer in Square meters Will Mark brainlest if cor class=

Respuesta :

ricchad

Answer:

70.75 in²

Step-by-step explanation:

area of a triangular pyramid = base area + 3(triangular sides area)

                                              = 1/2 (5) 4.3  +  3 (1/2 x 5 x 8)

                                              = 10.75 + 3(20)

                                              = 70.75 in²

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