Teachers' manual for freehand drawing in Intermediate schools : intended to accompany the drawing-books for intermediate schools (1878)
Smith, Walter, 1836-1886 · Toronto, A. Miller · leaf 58
-. But see that the pupil also imderstands thestrictly scientific usage: otherwise he will not get aclear comprehension of some things. … 56 ri-: AC HERS .AfANUAL. A Right Angle. — WliPii a vertical line meets ahorizontal line, or onh/ tends toivards it, the angleformed is called a right angle. If (ho v(Mtical lino moots the cinl of the liorizon-tal lino, thon one riiiht anjrle is ■ formed ; but if the lines meet asin I ho cut, then…
Drawing
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