What is the height of an equilateral triangle with sides that are 12 cm long? Round to the nearest tenth.
The height of an equilateral triangle can be found by taking one side and multiplying it by the square root of 3, then dividing that product by 2.
So, for an equilateral triangle with sides that are 12 cm long:
Height = 12 x sqrt(3) / 2
Height = 20.8 cm rounded to the nearest tenth (10th)
Therefore, the height of the equilateral triangle is approximately 20.8 cm.