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The construction of triangles i given two sides and
To construct a triangle given its sides Properties
On the properties of parallel chords of a circle
To draw a tangent to a circle at a point in its circum
To construct i the circumscribed circle of a triangle
Exercises on the construction of triangles which shall
To construct a hexagon an octagon and a pentagon
To find the area of a square and of an oblong
Some arithmetical examples
To prove that the area of a trapezium is equal to
To find the ratio between the circumferences of circles
acute angles angle equal angle of 30 angles marked base bisecting the angle called centre chord circumference coincide Construct containing copy diagonals diameter direction distance divide draw a circle draw a line Draw a triangle draw lines draw perpendiculars Draw two lines drawn easy edge ends equal angles equilateral triangle EXERCISES fact falls figure five formed four given greater half height Hence hexagon inscribed isosceles triangle Join length line drawn lines parallel means measure meet method middle point Note notice oblong obtuse angles octagon opposite angles pairs parallel lines parallelogram passes produce properties radius remember respectively right angles right-angled triangle segment semicircle set squares shew sides smaller square inches straight line Suppose Take tangents third touch tracing paper trial triangle ABC vertex vertical angle
Página viii - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.