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14 inches altitude apply base Bisect Book called centre chords circumference construction contain curved cutting describe a circle describe an arc describe arcs diagonal scale diagram diameter difference distance Divide divisions dotted Draw a line Draw the line drawn Edition equal Euclid EXAMPLES extremities figure Find formed four French Geometry given angle given circle given line given point given straight line given triangle greater half hexagon inches long inscribe intersection isosceles triangle Join length Let A B mean measure meet Multiple Note opposite parallel parallelogram pentagon perpendicular plain scale plane polygon practice Price Prob PROBLEM produced Prop proportional pupil radii radius ratio REASON rectangle regular regular polygon right angles right line right-angled triangle School sector segment sides similar square student tangent triangle equal triangle required vertex vertical angle
Side 8 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 7 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Side 68 - In any right-angled triangle, the square which is described upon the side subtending the right angle, is equal to the squares described upon the sides which contain the right angle.
Side 14 - An angle in a segment is the angle contained by two straight lines drawn from any point in the circumference of the segment to the extremities of the straight . line which is the base of the segment.
Side 9 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Side 11 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.