Question

Find the area of an equilateral triangle having side 8 cm.Find the area of an equilateral triangle having side 8 cm​

Answer 1

Find the area of an equilateral triangle with side 8 cm

Given side =8 cm

we know that

$\bf area \: of \: an \: equilateral \: triangle = \frac{ \sqrt{3} }{4} {(side)}^{2}$

$\bf = \frac{ \sqrt{3} }{4} {(8)}^{2}$

$\bf = \frac{ \sqrt{3} }{4} (64)$

$\bf = 16 \sqrt{3}$

∴ are of an equilateral triangle =27.712 cm^2

Answer 2

$\huge\large \fbox \green{Given :}$

$\sf \: An \: equilateral \: triangle \: having \: side \: 8cm.$

$\huge\large \fbox \green{Find :}$

$\sf\: Area \: of \: an \: equilateral \: triangle$

$\huge\large \fbox \green{Solution \: :}$

$</p><p>\bf area \: of \: an \: equilateral \: triangle = \frac{ \sqrt{3} }{4} {(side)}^{2} \\ </p><p></p><p>\bf = \frac{ \sqrt{3} }{4} {(8 \: cm)}^{2} \\ \\ </p><p></p><p>\bf = \frac{ \sqrt{3} }{4} (64 \: cm) \\ \\ </p><p></p><p>\bf = 16 \sqrt{3} \: \: cm \: {}^{2} \\ \\ \bf \: = 27.71 \: cm \: {}^{2} \\ \\ </p><p> \bf \: ∴ area \: of \: an \: equilateral \: triangle =27.712 cm^2$

Hope it helps you