Question

area of equilateral triangle is 100 √3 cm square find perimeter of triangle?​

Answer 1

Answer:

$area \: of \: equiletral \: traingle \: = 100 \sqrt{3 } \\ \\ \sqrt{3 } a { \: }^{2} \div 4 = 100 \sqrt{3 } \\solve \: it \: \\ a = 20 \\ area \: of \: perimeter \: = a + b + c \\ in \: equilateral \: traingle \: all \: side \: equal \: so \\ \\ perimeter = 20 + 20 + 20 \\ = 60cm$