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The perimeter of an equilateral triangle...

The perimeter of an equilateral triangle is 18 cm, find the area of the triangle.
The following steps are involved in solving the above problem. Arrange them in sequential order.
(A) Area of the equilateral triangle (A)
`=(sqrt3)/(4)a^(2)=(sqrt3xx(6))`
`(B) A=9sqrt3cm^(2)`
(C) Let the side of the equilateral triangle be a and its perimeter = 3a = 18 cm (given).
(D) a = 6 cm

A

CADB

B

CDAB

C

CBDA

D

ABCD

Text Solution

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The correct Answer is:
B
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