Euclid — "A plane angle is the inclination of the lines to one another, when two lines mee…"
A plane angle is the inclination of the lines to one another, when two lines meet one another, but are not in the same straight line.
A plane angle is the inclination of the lines to one another, when two lines meet one another, but are not in the same straight line.
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"Of trilateral figures, an equilateral triangle is that which has its three sides equal, an isosceles triangle that which has two of its sides alone equal, and a scalene triangle that which has its thr…"
"The only purpose of the 'Elements' is to demonstrate mathematically certain fundamental propositions."
"Give him threepence, since he must make a gain out of what he learns."
"And when the lines containing the angle are straight, the angle is called rectilineal."
"Of trilateral figures, an equilateral triangle is that which has its three sides equal, an isosceles triangle that which has only two of its sides equal, and a scalene triangle that which has its thre…"
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