direction of two lines, andnot the lines themselves, nor the space between them.An angle is formed when two lines tend towards eachother, though they do not extend far enough to meet.Good drawing models are the best objects with whichto illustrate the principles of geometrical drawing. The… … COMBIXING STRAIGHT LINES. TRIANGLES. A triangle is a figure having three atraigltt sides,enclosing three angles. A RiKht-angled Triangle. A right-angled triangle has one of its angles aright angle (J). Draw a right angle, by joining the end of a ver- 3* STRAIGHT LINES. 29
Drawing -- Study and teaching
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