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ajitw angle rib arecalled axis base bend bevel bisect Body Rib bottom break centre circle circular circumference compass crofs cylinder depth describe diameter distance divide dome dotted lines draw perpendicular draw the chords draw the line draw the ordinates drawn edge ellipsis face mould falling mould fame height fame manner feet long figure front rib give given rib given side groin hyperbola inches deep inches thick jack ribs joists last plate length method mitre number of equal parallel lines parallelogram piece of timber pitch-board plane plank points draw polygon PRACTICAL GEOMETRY prick proportion purline put the foot radius rafters rail rake regular polygon right angles right line roof round scantling segment semicircle sirst piece soffit square Staircase straight suppose surbase THEORY AND PRACTICE thofe traced triangle weight whofe
Page 2 - A Right angle is that which is made by one line perpendicular to another. Or when the angles on each side are equal to one another, they are right angles.
Page 4 - A. 44. A diameter of a circle is a right line drawn through the centre, terminating on both sides of the circumference, as с d, at B.