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Elementary Mathematics, Embracing Arithmetic, Geometry and Algebra
Ingen forhåndsvisning tilgjengelig - 2018
ABCD Algebra arithmetical ATLAS base called cent centre circle cloth common concrete consisting construction contained cost decimal denominator difference divide division divisor double draw employed equal equations example expression factors falling feet figure Find fore four fraction francs Geometry given greater Hence hundred inches interest Join less lettered Maps measure meet method metres metrical Multiply opposite parallel parallelogram pound Problem produced proof Prop proportion Proposition prove quantities questions quotient radius ratio Reduce remainder represent result right angles root rule shillings sides Similarly simple square straight line subtract third thousand triangle triangles are equal unit vulgar fraction weight whole
Side 85 - If a side of any triangle be produced, the exterior angle is equal to the, two interior and opposite angles ; and the three interior angles of every triangle are equal to two right angles.
Side 105 - If one side of a triangle be produced, the exterior angle is greater than either of the interior, and opposite angles.
Side 83 - If a straight line fall on two parallel straight lines, it makes the alternate angles equal to one another, and the exterior angle equal to the interior and opposite angle on the same side; and also the two interior angles on the same side together equal to two right angles.