Question

please choose the correct option......​

Answer 1

Answer:

option (a)

Step-by-step explanation:

option a is the answer because area if an equilateral triangle is /3 divided by 4 × side^2

(/ is under route sign)

Answer 2

Answer:

a)

$\frac{9 \sqrt{3} }{4}$

Step-by-step explanation:

Since all sides of the triangle are equal, it is an equilateral triangle.

We know that,

$are a \: of \: equilateral \: triangle = \frac{ \sqrt{3} }{4} {a}^{2}$

where a is the length of each side of the triangle.

In this case,

$a = 3cm$

On substituting the value of a in the formula, we get:

$area \: of \: triangle = (\frac{ \sqrt{3} }{4} \times {3}^{2} ) {cm}^{2} \\ = (\frac{ \sqrt{3} }{4} \times 9) {cm}^{2} \\ = \frac{9 \sqrt{3} }{4} {cm}^{2}$

Thus the correct answer is option a).

Hope it helps:)

Kindly mark my answer the Brainliest.

Thank you:)