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What did the Romans use for building tools and to get a building square?
To get a building square the Romans used the the groma and the set squares (L-shaped tools used to check the angle of the brickwork). The groma surveying instrument originated from Mesopotamia which was adopted by the Greeks in the 4th century BC, who then introduced it in Italy. It was a wooden vertical staff with two horizontal bars mounted at the top at right-angles with a bracket. Plum lines hung from the two ends of each bar. It allowed to survey straight lines and right-angles, to calculate squares or rectangles.
What are Thales's five propositions?
Thales is credited with five propositions, which were guidelines for the development of geometry. 1) Any angle inscribed within a semicircle is a right angle (90 degrees). (Thales's' Theorem) 2) A circle is bisected by its diameter. 3) An isosceles triangle has two sides of equal length. the two angels opposite those sides are equal to each other. 4) When two straight lines cross each other, they form four angles. The angles opposite each other will be equal. 5) Two triangles are equal in all respects if they have two angles and one side that equal those in the other triangle.
What is crosshatching art?
Crosshatching is an extension of hatching, which uses is the use of fine parallel lines drawn closely together, to create the illusion of shade or texture in a drawing. Crosshatching is the drawing of two layers of hatching at right-angles to create a mesh-like pattern. Multiple layers in varying directions can be used to create textures. Crosshatching is often used to create tonal effects, by varying the spacing of lines or by adding additional layers of lines. Crosshatching is used in pencil drawing, but is particularly useful with pen and ink drawing, to create the impression of areas of tone, since the pen can only create a solid black line.
What is the name of the place where two roads meet?
it means juncture
When two or more melodic lines of equal interest are performed simultaneously what is the texture?
Polyphonic.
When two of us meet you form right angles?
Perpendicular lines meet at right angles
Two lines that meet and form right angles?
They are mutually perpendicular lines.
What are two lines meet and form right angles?
perpendicular
What if two lines meet and form right angles?
If they intersect and form right angles, they're perpendicular.
What happens when two lines are not perpendicular?
They do not meet at right angles to one another.
What are two lines that meet at a right angle?
Two lines that meet at a right angle are called perpendicular.Two lines that meet at a right angle are also called normal.Two lines that meet at a right angle are also called orthogonal.
What are lines formed by the intersection of two number lines that meet at right angles at there zero points?
coordinate plane
When two of us meet you form one or more right angles?
That would be two perpendicular lines.
Two lines meet angles are?
Angles in the straight line
What has two lines that form a right angles?
two lines that are perpendicular form right angles
What is the fifth postulate of Euclid's?
The parallel postulate: "That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles."
Formed by the intersection of two number lines that meet at right angles at their zero points?
a coordinate plane
