Respuesta :

goyangi
Surface area = 56 cm2

Explanation:

Area of square base = Side x Side = 4 x 4 = 16 cm2

Area of triangle = 1/2 x Base x Height = 1/2 x 4 x 5 = 10 cm2
Area of 4 triangles = 10 x 4 = 40 cm2

Surface area of pyramid = 16 + 40 = 56 cm2

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