Respuesta :

hayden8345
surface area is found by finding the sum of all areas of surfaces, 28 + 35 equals 63
veershergill40
surface area of rectangle= 2*( l*h + h*b + b*l )
= 2* (5*7 +7*4 + 4*5 )
= 2* ( 35 + 28 + 20)
= 2* ( 83)
=166mm^2

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