find the length of the altitude of an equilateral triangle with side 6cm
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Altitude = Height = 6 cm Let length of side be 'a'
So , √3/2 a = 6 So a = 12/√3 So a = 4√3 cm
This 'a' is the length of the side
Now, area = (√3/4) × a² So, Area = (√3/4) × (4√3)² So, Area = (√3/4) × (16×3) So, Area = ✓3 × 4 × 3 So, Area = 12√3 So, Area = 12×1.732
So, Area = 20.784 cm²
So , √3/2 a = 6 So a = 12/√3 So a = 4√3 cm
This 'a' is the length of the side
Now, area = (√3/4) × a² So, Area = (√3/4) × (4√3)² So, Area = (√3/4) × (16×3) So, Area = ✓3 × 4 × 3 So, Area = 12√3 So, Area = 12×1.732
So, Area = 20.784 cm²
mrunmayi10:
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