the perimeter of an equilateral triangle is 60 metre its area is
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Answer:
Step-by-step explanation:
Perimeter=3×60=180 m
Area=root3/4×180=root3 ×45
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perimeter of a equilateral triangle=60m
perimeter=3a
60m=3a
a=60m/3
a=20m
area of a equilateral triangle=√3/4×a^2
area=√3/4×20m×20m
area=√3/4×400m^2
area=100√3m^2
abhipsa793:
As the sides of an equilateral triangles are equal..so 3a perimeter..= 60..then a equals...60 divided by 3 becomes 20...the area formula of equilateral triangle I'd √3/4 a×a..so √3/4×20×20 =√3/4 ×400=√3×400/4=√3×100=100√3..done!!
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