an equilateral triangle has perimeter 30cm. Find it’s area?
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Heya!!
Area of equilateral having sides x is = x² √3 / 4
And
perimeter of equilateral triangle having sides x is = 3x
3x = 30
x = 10 cm
it's area is = ( 10 )² √3 / 4 = 25√3 cm²
Area of equilateral having sides x is = x² √3 / 4
And
perimeter of equilateral triangle having sides x is = 3x
3x = 30
x = 10 cm
it's area is = ( 10 )² √3 / 4 = 25√3 cm²
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