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

Question

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

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Khang Minh 4 years 2021-09-02T08:00:21+00:00 2 Answers 13 views 0

Answers ( )

  1. Sapo1
    0
    2021-09-02T08:01:23+00:00
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    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}

  2. RuslanHeatt
    0
    2021-09-02T08:01:53+00:00
    Reply

    Answer:

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

    Step-by-step explanation:

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

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