Respuesta :

Answer:

680

Step-by-step explanation:

samclements2003

Answer:

969[tex]mm^{2}[/tex]

Step-by-step explanation:

Surface area of a square based pyramid is: lw+4(wh/2)

where l=17mm, w=17mm, h=20mm

SA=lw+4(wh/2)

SA=17(17)+4([tex]\frac{17(20)}{2}[/tex])

SA=969[tex]mm^{2}[/tex]

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