Question

Perimeter of an equilateral triangle is 450 m.find its area and altitude.(use √3=1.73)

Answer 1

perimeter of an equilateral traingle=3xSIDE
perimeter=450M
SIDE=450/3=150M
S=150M
NOW, AREA=√3xSIDE(SQUARE)/4
=1.732x150(square)/4
square of 150=22500m
=1.732x22500/4
=9742.5m
hence, area of equilateral traingle=9742.5m
ALTITUDE
altitude of a equilateral traingle=√3x side/2
=1.732x150/2
=129.9m
hence,
area of equilateral traingle=9742.5m

altitude of a equilateral traingle=129.9m

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