area of equilateral triangle 72square cm find the perimeter
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area = √3 / 4 a^2
72. = √3 / 4 a^2
72 x 4 / √3 = a^ 2
166.27 =a^2
a = √ 166.27
a= 12.89
perimeter = 12.89 x 3= 4.29 cm
72. = √3 / 4 a^2
72 x 4 / √3 = a^ 2
166.27 =a^2
a = √ 166.27
a= 12.89
perimeter = 12.89 x 3= 4.29 cm
khu8:
how it come explain
plzz
area of equilateral triangle is √3 a ÷ 4
sry , it is , √3 a^2 ÷4
from there u find the value of a
multiply the value of a by 3 to get the Perimeter
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