Question

Please help me, need you to explain please thanks.

Answer 1

a.
area=s²
12m²=area
12m²=s²
sqrt both sides
√12m=s
2√3=s
the side is 2√3m

b.
P=4s
P=4(2√3 m)
P=8√3 m


c.
V=s³
V=(2√3 m)³
V=8(3)(√3) m³
V=24√3 m³