Drawing Lines
... The method shown can be used either for dividing a line into parts of equal lengths or into lines which are proportional in length to each other. Dividing a Line into Parts of Equal Length 1. Drawing 1 (Figure 5) - Draw line AB 93 mm long with a Tee square. 2. Draw line AC from A at any angle to AB. ...
... The method shown can be used either for dividing a line into parts of equal lengths or into lines which are proportional in length to each other. Dividing a Line into Parts of Equal Length 1. Drawing 1 (Figure 5) - Draw line AB 93 mm long with a Tee square. 2. Draw line AC from A at any angle to AB. ...
Trade of Metal Fabrication
... The method shown can be used either for dividing a line into parts of equal lengths or into lines which are proportional in length to each other. Dividing a Line into Parts of Equal Length 1. Drawing 1 (Figure 5) - Draw line AB 93 mm long with a Tee square. 2. Draw line AC from A at any angle to AB. ...
... The method shown can be used either for dividing a line into parts of equal lengths or into lines which are proportional in length to each other. Dividing a Line into Parts of Equal Length 1. Drawing 1 (Figure 5) - Draw line AB 93 mm long with a Tee square. 2. Draw line AC from A at any angle to AB. ...
Activity Overview
... Intersecting lines are one of the most common figures in geometry. In this activity, you will investigate the properties of angles formed by intersecting lines. The outcome of the activity will produce two important geometric theorems dealing with vertical and supplementary angles. This activity mak ...
... Intersecting lines are one of the most common figures in geometry. In this activity, you will investigate the properties of angles formed by intersecting lines. The outcome of the activity will produce two important geometric theorems dealing with vertical and supplementary angles. This activity mak ...
Geo 2.4 PointsLinesPlanesSpace
... intersection point is between them. Measure the four angles formed. What is true about angles formed by perpendicular lines? Drag one of the points that created one of the lines. What changes do you observe? Do the angles measures change? 16) Create a ray. Label the endpoint of the ray K and the ...
... intersection point is between them. Measure the four angles formed. What is true about angles formed by perpendicular lines? Drag one of the points that created one of the lines. What changes do you observe? Do the angles measures change? 16) Create a ray. Label the endpoint of the ray K and the ...
InteriorAnglesJR - Dynamic Math Institute
... B. In one triangle, what is the sum of the interior angles?_____________________ Take out the triangles and the polygon from the envelope. Name of polygon:______________________________ Shade the interior angles of the_______________________ (polygon) . Using the triangles create a _________________ ...
... B. In one triangle, what is the sum of the interior angles?_____________________ Take out the triangles and the polygon from the envelope. Name of polygon:______________________________ Shade the interior angles of the_______________________ (polygon) . Using the triangles create a _________________ ...
Compass-and-straightedge construction
Compass-and-straightedge construction, also known as ruler-and-compass construction or classical construction, is the construction of lengths, angles, and other geometric figures using only an idealized ruler and compass.The idealized ruler, known as a straightedge, is assumed to be infinite in length, and has no markings on it and only one edge. The compass is assumed to collapse when lifted from the page, so may not be directly used to transfer distances. (This is an unimportant restriction since, using a multi-step procedure, a distance can be transferred even with collapsing compass, see compass equivalence theorem.) More formally, the only permissible constructions are those granted by Euclid's first three postulates. Every point constructible using straightedge and compass may be constructed using compass alone.The ancient Greek mathematicians first conceived compass-and-straightedge constructions, and a number of ancient problems in plane geometry impose this restriction. The ancient Greeks developed many constructions, but in some cases were unable to do so. Gauss showed that some polygons are constructible but that most are not. Some of the most famous straightedge-and-compass problems were proven impossible by Pierre Wantzel in 1837, using the mathematical theory of fields.In spite of existing proofs of impossibility, some persist in trying to solve these problems. Many of these problems are easily solvable provided that other geometric transformations are allowed: for example, doubling the cube is possible using geometric constructions, but not possible using straightedge and compass alone.In terms of algebra, a length is constructible if and only if it represents a constructible number, and an angle is constructible if and only if its cosine is a constructible number. A number is constructible if and only if it can be written using the four basic arithmetic operations and the extraction of square roots but of no higher-order roots.