Question

an equilateral triangle whose side is 20 cm and find its area ​

Answer 1

Answer:

here is your answer.

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Answer 2

Answer:

$100 \sqrt{3}$

Step-by-step explanation:

ans = {s(s-a)(s-b)(s-c)}^1/2

={30(30-20)^3}^1/2

={30*1000}^1/2

=

$\sqrt{30000}$

=

$100 \sqrt{3}$