If the normal of an equilateral triangle is the square root of three-quarters, what is the sum of its three sides, and how is this proved?
Definition: A normal is the perpendicular line which measures from the vertex of the triangle to its base, meeting it at right-angles.
Hint: It is not necessary to know that the square-root of three-quarters is approx. 0.8660254...
...and you don't need to be an Einstein to work it out, but knowledge of Pythagoras is definitely an advantage.
Definition: A normal is the perpendicular line which measures from the vertex of the triangle to its base, meeting it at right-angles.
Hint: It is not necessary to know that the square-root of three-quarters is approx. 0.8660254...
...and you don't need to be an Einstein to work it out, but knowledge of Pythagoras is definitely an advantage.
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