Respuesta :

apologiabiology
cut it up

we got
8 by 10 front=80
5 by 10 back=50
7 by 10 top=70
11 by 10 bottom=110
sides are trapezoids with bases 7 and 11 and height 5, 2 of them so 2 times (7+11)/2 times 5=90


add them all up
80+50+70+110+90=400


answer isi 400 in²