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a*b=16√3
tg30⁰= √3 / 3
tg30⁰ = 0,5a/0,5b
√3/3=0,5a / 0,5b
a=√3/3b
P=√3/3*b*b
16√3=b²* √3/3
b²=48
b=4√3
a=√3/3*4√3=8
Ob=2a+2b
Ob=2*8+2*4√3
Ob=8+8√3=8(1+√3)
√3=a/b
a=√3b
P=ab
16√3=ab
16√3=√3b*b
b²=16→b=4cm
a=√3b
a=√3*4cm
Ob=2a+2b
Ob=8√3+8=8(√3+1)cm