Question

find the area of an equilateral triangle with side 10 centimetre​

Answer 1

Step-by-step explanation:

Area of an equilateral traingle is

$area = \frac{ \sqrt{3} }{4} {(side)}^{2} \\ = \frac{ \sqrt{3} }{4} \times {10}^{2} \\ = \frac{ \sqrt{3} }{4} \times 100 \\ = 25 \sqrt{3} sq \: units$

Thank you

Answer 2

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find the area of an equilateral triangle with side 10 centimetre

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• Side of equilateral triangle = 10cm.

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$\large\underline{ \underline{ \purple{ \bold {To \:Find}}}} = >$

• We have to find the area of triangle

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⠀⠀$\boxed{ \fbox{ \purple{area \: of \: equilateral \triangle = \frac{ \sqrt{3} }{4} a {}^{2} }}}$

so,

$\bf \frac{ \sqrt{3} }{4} \times 10\times 10 \ \\ \\ \ \:\:\:\:\:\:\:\:\:\:\large \implies \bf{\pink{\underline {\green{\boxed{\fbox {\red{{25 \sqrt{3} }cm {}^{2}}}}}}}}$

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$\:\:\:\:\:\:\large\underline{ \underline{ \purple{ \bold {eQuilaTeral \:TrianGle}}}}$

An equilateral triangle have three congruent sides.

All the sides have same length.