AFind the area of an enea of an equilateral triangle of side 10 cm. – InterviewSolution

1.

AFind the area of an enea of an equilateral triangle of side 10 cm.

Answer»

Side=10cm

Area of an EQUILATERAL TRIANGLE=

$= \sqrt{3} a^{2} \div 4$

$= \sqrt{3 } \times 10 {}^{2} \div 4$

$= \sqrt{3} \times 100 \div 4$

$= 100 \sqrt{3} \div 4$

$= 20 \sqrt{3}$

$area \: of \: triangle \: = 20 \sqrt{3}$

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