If the perimeter of an equilateral triangle is 60 cm, then what is its area?
2 answers:
P=60/3
=20
a+b=c
C-b=a
40p-100=root 300
100root3
Hello! The Perimeter is = 60cm
1 side = 60/3 = 20 cm
√s(s-a)(s-b)(s-c)s(s−a)(s−b)(s−c)
s = 30
√30(30-20)(30-20)(30-20)
=√30×10×10×10=√30000cm²
The Area is = 100√3 cm²
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