elishaheart21 elishaheart21

28-01-2018
Mathematics

contestada

Help me please anything will be helpful, thank you.

Help me please anything will be helpful thank you class=

Respuesta :

redriptideW01fy555 redriptideW01fy555

28-01-2018

a. 81 because the formula for surface area is 2(wl + hl + hw)
So the formula filled in is 2( 1 1/2 x 3 + 2 x 3+2 x 1 1/2 ) = 27
and 27 x 3 = 81

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