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What is the area of the equilateral triangle if the base BC

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What is the area of the equilateral triangle if the base BC [#permalink]  15 Oct 2018, 03:26
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80% (00:18) correct 20% (06:59) wrong based on 5 sessions
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#GREpracticequestion What is the area of the equilateral triangle.jpg [ 9.13 KiB | Viewed 73 times ]

What is the area of the equilateral triangle if the base BC = 6?

(A) $$9 \sqrt{3}$$

(B) $$18 \sqrt{3}$$

(C) $$26 \sqrt{3}$$

(D) $$30 \sqrt{3}$$

(E) $$36 \sqrt{3}$$
[Reveal] Spoiler: OA

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Re: What is the area of the equilateral triangle if the base BC [#permalink]  09 Jan 2019, 07:18
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For equilateral triangle area= $$\sqrt{3}/4*a^2$$ where a = side
Here, $$\sqrt{3}/4*6^2$$
=$$9 \sqrt{3}$$
Re: What is the area of the equilateral triangle if the base BC   [#permalink] 09 Jan 2019, 07:18
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