Question

find the area of an equilateral triangle of side 4.8 centimetre​

Answer 1

Answer:

$∆ = 9.96 \: \: {cm}^{2}$

Step-by-step explanation:

$area \: of \: equilateral \: ∆ = \frac{ \sqrt{3} }{4} {a}^{2} \\ \\ = \frac{ \sqrt{3} }{4} \times {(4.8)}^{2}$

$= \frac{ \sqrt{3} }{4} \times 23.04 \\ \\ = 5.76 \sqrt{3}$

taking √3 = 1.73,

$∆ = 9.96 \: \: {cm}^{2}$

Hope it helps