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adjacent angle equal base Bisect the angle centre chords circumference complete Construct a triangle curve describe a circle describe a semicircle describe an arc describe arcs diameters distance divide divisions draw a line Draw diagonals draw lines drawn eight elevation ellipse equal circles equal semicircles equilateral triangle extremities figure foci GEOMETRY given circle given line given one side given point horizontal plane inch inscribe a square intersect isosceles triangle Join LESSON major axis Mark measure meet Note number of equal octagon parallel pass perpendicular plane principles prism Prob Problem Proceed Produce Project proportional pyramid radius regular hexagon regular polygon rhombus right angles scale sector shown similar solid straight line student tangent three equal touch one side touch two sides trapezion unequal
Seite 57 - The angles contained by a tangent to a circle, and a chord drawn from the point of contact, are equal to the angles in the alternate segments of the...
Seite 43 - If two circles touch each other internally, the straight line which joins their centres, being produced, shall pass through the point of contact.
Seite 72 - A CIRCLE is a plane figure, bounded by a curved, line, every point of which is equally distant from a point within, called the centre.
Seite 47 - Similar rectilineal figures are those which have their several angles equal, each to each, and the sides about the equal angles proportionals. II. " Reciprocal figures, viz. triangles and parallelograms, " are such as have their sides about two of their " angles proportionals in such a manner, that a side
Seite 11 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Seite 37 - From this it is manifest, that the straight line which is drawn at right angles to the diameter of a circle from the extremity .of it, touches the circle; and that it touches it only in one point, because, if it did meet the circle in two, it would fall within it (2. 3.) ' Also it is evident that there can be but one straight line which touches the circle in the same point.
Seite 23 - IF a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another; and the exterior angle equal to the interior and opposite upon...
Seite 11 - A Sector is any part of a circle bounded by an arc and its two radii.