## Elementary geometry |

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Side 13

I. At a

I. At a

**given point**in a given straight line there can be only one perpendicular drawn to that line . COR . 2 . The complements of equal angles are equal . Side 16

If four straight lines 0A , OB , OC , OD meet at

If four straight lines 0A , OB , OC , OD meet at

**a point**, and AOB = COD , and BOC = DOA , prove that AOC , BOD are straight lines . Side 32

From a

From a

**given point**outside a given straight line , only one perpendicular can be drawn to that straight line . THEOREM 19 . Of all the straight lines that ... Side 33

Of all the straight lines that can be drawn from a

Of all the straight lines that can be drawn from a

**given point**to meet a given straight line , the perpendicular is the shortest ; and of the others , those ... Side 34

Not more than two equal straight lines can be drawn from a

Not more than two equal straight lines can be drawn from a

**given point**to a given straight line . THEOREM 20 . If two triangles have two sides of the one ...### Hva folk mener - Skriv en omtale

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### Vanlige uttrykk og setninger

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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