Side of an equilateral triangle is 4cm it's area is
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Answer:
4√3 cm^2
Step-by-step explanation:
A=4 cm
Perimeter= 4+4+4=12 cm
Semi perimeter=12/2=6 cm
Using herons formula
Area = √s(s-a)(s-b)(s-c)
=√6(6-4)(6-4)(6-4)
=√6*2*2*2
=√2*2*2*2*3
=4√3 cm^2
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