A School Geometry, Deler 1-4Macmillan and Company, 1908 |
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Resultat 1-5 av 61
Side x
... perpendicular is the least . 33 COR . 1. If OC is the shortest straight line from O to the straight line AB , then OC is perpendicular to AB . 33 COR . 2. Two obliques OP , OQ , which cut AB at equal distances from C the foot of the ...
... perpendicular is the least . 33 COR . 1. If OC is the shortest straight line from O to the straight line AB , then OC is perpendicular to AB . 33 COR . 2. Two obliques OP , OQ , which cut AB at equal distances from C the foot of the ...
Side xii
... perpendicular to a given straight line at a given point in it . RE 70 72 PROBLEM 4. To draw a straight line perpendicular to a given straight line from a given external point . 74 PROBLEM 5. At a given point in a given straight line to ...
... perpendicular to a given straight line at a given point in it . RE 70 72 PROBLEM 4. To draw a straight line perpendicular to a given straight line from a given external point . 74 PROBLEM 5. At a given point in a given straight line to ...
Side xiii
... perpendicular distances from two given straight lines AB , CD are equal to one another . INTERSECTION OF LOCI THE CONCURRENCE OF STRAIGHT LINES IN A TRIANGLE . PAGE 87 88888 91 92 93 I. The perpendiculars drawn to the sides of a ...
... perpendicular distances from two given straight lines AB , CD are equal to one another . INTERSECTION OF LOCI THE CONCURRENCE OF STRAIGHT LINES IN A TRIANGLE . PAGE 87 88888 91 92 93 I. The perpendiculars drawn to the sides of a ...
Side xvi
... perpendicular to a tangent at its point of contact passes through the centre . 174 COR . 3. The radius drawn perpendicular to the tangent passes through the point of contact . 174 THEOREM 47. Two tangents can be drawn to a circle from ...
... perpendicular to a tangent at its point of contact passes through the centre . 174 COR . 3. The radius drawn perpendicular to the tangent passes through the point of contact . 174 THEOREM 47. Two tangents can be drawn to a circle from ...
Side 4
... perpendicular to AB . ( ii ) All right angles are equal . A right angle is divided into 90 equal parts called degrees ( ° ) ; each degree into 60 equal parts called minutes ( ' ) ; each minute into 60 equal parts called seconds ...
... perpendicular to AB . ( ii ) All right angles are equal . A right angle is divided into 90 equal parts called degrees ( ° ) ; each degree into 60 equal parts called minutes ( ' ) ; each minute into 60 equal parts called seconds ...
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Vanlige uttrykk og setninger
AB² adjacent angles altitude angle equal base BC bisector bisects circle of radius circle whose centre circles which touch circum-circle circumference circumscribed coincide common tangents concyclic Construct a triangle diagonals diagram diameter distance divided draw a circle equal in area equidistant escribed circles Euclid exterior angles Find the area find the locus given angle given circle given point given straight line given triangle greater Hence hypotenuse inches inscribed isosceles triangle length Let ABC meet metres middle point millimetre nine-points circle opposite sides orthocentre par¹ parallelogram pedal triangle perp PROBLEM produced Proof radii rect rectangle rectangle contained rectilineal figure required to prove respectively rhombus right angles right-angled triangle segment shew shewn straight line drawn tangent Theor Theorem trapezium triangle ABC triangles are equal vertex vertical angle
Populære avsnitt
Side xi - IF two triangles have two angles of one equal to two angles of the other, each to each ; and one side equal to one side, viz. either the sides adjacent to the equal...
Side 44 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 190 - Upon a given straight line to describe a segment of a circle, which shall contain an angle equal to a given rectilineal angle.
Side 12 - If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line.
Side 5 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Side 122 - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.
Side 28 - If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles.
Side x - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Side 65 - The sum of the perpendiculars from any point within an equilateral triangle to the three sides is equal to the altitude of the triangle (Fig.