The extremities of a surface
What are lines?
Euclid's first definition
What is "A point is that which has no part"?
This postulate states, "To draw a straight line from any point to any point."
What is Euclid's first postulate?
A(n) _____ triangle is that which has two of its sides equal.
What is isosceles?
An angle less than a right angle
What is an acute angle?
A straight line
What is a line which lies evenly with the points on itself?
Euclid's second postulate allows us to do this
What is producing a finite straight line continuously in a straight line.
What is adjacent?
Any straight line drawn through the center and terminated in both directions by the circumference of the circle, and such a straight line also bisects the circle
What is a diameter?
A boundary
What is an extremity of anything?
Suggest or assume the existence, fact, truth of something as a basis for reasoning, discussion, or belief.
What is a postulate?
A circle is a plane figure contained by one line such that all the straight lines falling upon it from one point among those _____ ________ ___ _____ are equal to one another
What is lying within the figure?
Of quadrilateral figures, it is the one which is both equilateral and right-angled
What is a square?
Obtuse angle
What is an angle greater than a right angle?
Euclid's fourth postulate
What is to describe a circle with any center and distance?
A rhombus is a quadrilateral that is equilateral but not ____
What is right angled?
Straight lines which, being in the same plane and being produced indefinitely in both directions, do not meet one another in either direction
What are parallel lines?
A semicircle
What is the figure contained by the diameter and the circumference cut off by it?
Lines where the interior angles between them does not add up to two rights will do this
What is meet on that side?
A plane angle is the _____ to one another of two lines in a ____ which meet one another and do not lie in a straight line.
What are inclination and plane?