Question

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please answer fast​

Answer 1

Answer:

(√(3)/4)a²=4√(3)

a²=16

a=4

Then a+a+a=4+4+4=12.

so, 2πr=12

2×(22/7)×r=12

r=21/11

A=πr²=(22/7)×(21/11)²=11.5cm²