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Rudik [331]
2 years ago
15

Find the area of an equilateral triangle whose value is 18 cm​

Mathematics
2 answers:
rusak2 [61]2 years ago
3 0

Answer:

18 + 18 + 18 = 18 \times 3 = 54

Step-by-step explanation:

I ain't sure but it might help you out:D

muminat2 years ago
3 0

Answer:

140.3 cm²

Step-by-step explanation:

area of an equilateral triangle

=   \frac{\sqrt{3} }{4}  {a}^{2}

where a is the side of the triangle

= \frac{ \sqrt{3} }{4}  \times  {18}^{2}  \\  = 140.3 \: cm {}^{2}

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