If the perimeter of an equilateral triangle is 36cm calculate its altitude correct to two decimal place
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sides=12cm
altitude will divide base in two equal parts of 6cm
according to Pythagoras theorem
12²=6²+altitude²
144-36=altitude²
108 =altitude²
=10.39cm
altitude will divide base in two equal parts of 6cm
according to Pythagoras theorem
12²=6²+altitude²
144-36=altitude²
108 =altitude²
=10.39cm
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