a)
V=Pp*H
V=10√3
H=10
Pp=(a²√3)/2
(a²√3)/2*10=10√3
5a²√3=10√3 /:5√3
a²=2
a=√2
b)
Pp=(3a²√3)/2
(3a²√3)/2*10=10√3
15a²√3=10√3/:15√3
a²=2/3
a=√2/3
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a)
V=Pp*H
V=10√3
H=10
Pp=(a²√3)/2
(a²√3)/2*10=10√3
5a²√3=10√3 /:5√3
a²=2
a=√2
b)
Pp=(3a²√3)/2
(3a²√3)/2*10=10√3
15a²√3=10√3/:15√3
a²=2/3
a=√2/3