A School Geometry, Deler 1-4Macmillan and Company, 1908 |
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Side x
... base of an isosceles triangle are equal . COR . 1. If the equal sides of an isosceles triangle are pro- duced , the exterior angles at the base are equal . COR . 2. If a triangle is equilateral , it is also equiangular . THEOREM 6 ...
... base of an isosceles triangle are equal . COR . 1. If the equal sides of an isosceles triangle are pro- duced , the exterior angles at the base are equal . COR . 2. If a triangle is equilateral , it is also equiangular . THEOREM 6 ...
Side xi
... base of that which has the greater angle is greater than the base of the other . CONVERSE OF THEOREM 19 - 42 44 46 48 50 51 52 283 53 22 Parallelograms . DEFINITIONS 56 THEOREM 20. [ Euc . I. 33. ] The straight lines which join the ...
... base of that which has the greater angle is greater than the base of the other . CONVERSE OF THEOREM 19 - 42 44 46 48 50 51 52 283 53 22 Parallelograms . DEFINITIONS 56 THEOREM 20. [ Euc . I. 33. ] The straight lines which join the ...
Side xii
... base , divide one side AB into equal parts , they also divide the other side AC into equal parts . DIAGONAL SCALES Practical Geometry . Problems . PROBLEMS ON LINES AND ANGLES . 69 69 68886 63 INTRODUCTION . NECESSARY INSTRUMENTS ...
... base , divide one side AB into equal parts , they also divide the other side AC into equal parts . DIAGONAL SCALES Practical Geometry . Problems . PROBLEMS ON LINES AND ANGLES . 69 69 68886 63 INTRODUCTION . NECESSARY INSTRUMENTS ...
Side xiii
... base and between the same parallels are equal in area . 104 AREA OF A PARALLELOGRAM 105 THEOREM 25. AREA OF A TRIANGLE . 106 THEOREM 26. [ Euc . I. 37. ] Triangles on the same base and between the same parallels ( hence , of the same ...
... base and between the same parallels are equal in area . 104 AREA OF A PARALLELOGRAM 105 THEOREM 25. AREA OF A TRIANGLE . 106 THEOREM 26. [ Euc . I. 37. ] Triangles on the same base and between the same parallels ( hence , of the same ...
Side xv
... base , and on the same side of it , have their vertices on an arc of a circle , of which the given base is the chord . THEOREM 40. [ Euc . III . 22. ] The opposite angles of any quadrilateral inscribed in a circle are together equal to ...
... base , and on the same side of it , have their vertices on an arc of a circle , of which the given base is the chord . THEOREM 40. [ Euc . III . 22. ] The opposite angles of any quadrilateral inscribed in a circle are together equal to ...
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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.