Find the perimeter of an equilateral triangle, if its area is 64√3
cm²
niral:
area of equilateral triangle= root3/4 a^2.
so we have to put up value. root3=1.732 (64root3)^2= 12288
(1.732/4 ) * 12288 = 665088/125 cm^2 or 5320.704 cm^2
Answers
Answered by
1
A= √3/4a^2
a^2 = 64×4
a=√256
a=16
P =3a
p = 3×16=48cm
Answered by
0
Answer:
as areaof atriangle is 3×side
64√3=3×side
64√3/3=side
perimeter of atriangle is sumof all sides
64√3/3+64√3/3+64√3/3=332.55 cm
hence the perimeter is 332.5cm
Similar questions