## Elementary geometry |

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Side 11

A quadrilateral is a polygon of four

A quadrilateral is a polygon of four

**sides**, a pentagon one of five**sides**, a hexagon one of six**sides**, and so on . 2 . GEOMETRICAL AXIOMS . 1. Side 18

An isosceles triangle is that which has two

An isosceles triangle is that which has two

**sides**equal . Def . 31 . A right - angled triangle is that which has one of its angles a right angle . Side 20

En . Let ABC be an isosceles triangle , having the

En . Let ABC be an isosceles triangle , having the

**side**AB equal to the**side**AC ; it is required to prove that the angle B is equal to the angle C. B C x ... Side 21

If two triangles have one

If two triangles have one

**side**of the one equal to one**side**of the other , and the angles at the extremities of those**sides**equal , each to each , then the ... Side 25

Any two

Any two

**sides**of a triangle are together greater than the third**side**. Part . En . Let ABC be a triangle ; it is required to prove that AB and BC are ...### Hva folk mener - Skriv en omtale

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ABCD adjacent angle ABC angle APB angle BAC base bisect bisector Book called centre chord circle circumference coincide College common Constr construct converse Crown 8vo diagonals diameter difference distance divided draw drawn Edition ELEMENTARY equal angles Euclid Examples exterior angle extremities fall figure Find follows four Geometry given angle given point given straight line greater half Hence Illustrations included inscribed interior intersect isosceles triangle Join length less Let ABC line drawn locus magnitudes measure meet middle point minor arc opposite sides parallel parallelogram pass perpendicular placed polygon PROBLEM produced Professor Proof proportional quadrilateral radius ratio rectangle contained rectilineal figure regular required to prove respectively right angles School segment Shew sides similar Similarly square supplementary tangent THEOREM third touch triangle ABC unequal

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