using heron's formula find the area of an equilateral triangle with altitude 8 root 3 cm
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1. Let 2x be the length of side of the equilateral triangle
2. 8√3 = √((2x)²-x²)
8√3 =√(4x²-x²)
8√3=x√3
8=x
3. A=2*8=16
4. S=16*3=48
5. Apply the heron's formula then.
2. 8√3 = √((2x)²-x²)
8√3 =√(4x²-x²)
8√3=x√3
8=x
3. A=2*8=16
4. S=16*3=48
5. Apply the heron's formula then.
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