Plane GeometryAmerican Book Company, 1899 - 242 σελίδες |
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Αποτελέσματα 1 - 5 από τα 100.
Σελίδα 12
... equal adjacent angles ; that is , two right angles . 6. Draw from a point or vertex two straight lines in opposite directions ; that is , form a straight angle . How does a straight ... angle does not depend upon the 12 GEOMETRY . Angles.
... equal adjacent angles ; that is , two right angles . 6. Draw from a point or vertex two straight lines in opposite directions ; that is , form a straight angle . How does a straight ... angle does not depend upon the 12 GEOMETRY . Angles.
Σελίδα 13
... angles have a common vertex , it is customary to use three letters in ... equal adjacent angles , each of the angles is called a Right Angle ; and ... equal to two right angles . 28. An angle less than a right angle is called GEOMETRY . 13.
... angles have a common vertex , it is customary to use three letters in ... equal adjacent angles , each of the angles is called a Right Angle ; and ... equal to two right angles . 28. An angle less than a right angle is called GEOMETRY . 13.
Σελίδα 14
... angles is called a Reflex Angle . Acute , obtuse , and reflex angles are called oblique angles in distinction from right angles and straight angles . 31. When two angles are together equal ... equal to two right angles , they are called ...
... angles is called a Reflex Angle . Acute , obtuse , and reflex angles are called oblique angles in distinction from right angles and straight angles . 31. When two angles are together equal ... equal to two right angles , they are called ...
Σελίδα 15
... equal to two right angles ( § 27 ) , when the line has passed one fourth of the distance around to OA , a right angle has been generated , and the lines OB and 04 are ... GEOMETRY . 15 Measurement of Angles Equality of Geometrical Magnitudes.
... equal to two right angles ( § 27 ) , when the line has passed one fourth of the distance around to OA , a right angle has been generated , and the lines OB and 04 are ... GEOMETRY . 15 Measurement of Angles Equality of Geometrical Magnitudes.
Σελίδα 16
... equal . If an angle is conceived to be placed upon another angle so that their vertices coincide and their sides take the same directions , respectively , the angles are equal . If any figure is conceived to be placed upon any other ...
... equal . If an angle is conceived to be placed upon another angle so that their vertices coincide and their sides take the same directions , respectively , the angles are equal . If any figure is conceived to be placed upon any other ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
AABC AB² ABCD AC² adjacent angles angle formed angles are equal apothem arc intercepted base and altitude BC² bisector bisects CD² central angle chord circle whose center circumference circumscribing circle compare in length Construct a square Construct a triangle Data diagonals diameter divided equal circles equidistant equilateral triangle exterior extremities FGHJK given line given parallelogram given point given triangle Hence homologous sides hypotenuse inscribed angle interior angles intersecting isosceles trapezoid isosceles triangle line drawn measured by arc meet middle point MILNE'S number of sides opposite sides parallel lines perimeter perpendicular produced proportion prove Q.E.D. Proposition quadrilateral radii radius ratio rect rectangle formed regular inscribed regular polygon rhombus right angle right triangle secant similar polygons similar triangles square equivalent subtended tangent Theorem third side transversal trapezoid triangle ABC triangle equivalent triangle is equal vertex vertical angle
Δημοφιλή αποσπάσματα
Σελίδα 67 - The line joining the middle points of two sides of a triangle is parallel to the third side and equal to half of the third side.
Σελίδα 105 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 46 - Any exterior angle of a triangle is equal to the sum of the two opposite interior angles.
Σελίδα 74 - If two parallel lines are cut by a third straight line, the sum of the two interior angles on the same side of the transversal is equal to two right angles, (p.
Σελίδα 64 - From 56 and 57 the pupils should learn that two triangles are equal in every respect (a) when two sides and the included angle of one are equal to two sides and the included angle of the other...
Σελίδα 53 - If two angles of a triangle are unequal, the sides opposite are unequal, and the greater side is opposite the greater angle.
Σελίδα 61 - If the opposite sides of a quadrilateral are equal, the figure is a parallelogram.
Σελίδα 126 - DE and on the same side of it ; but equal triangles on the same base, and on the same side of it, are between the same parallels ; [I.
Σελίδα 90 - Theorem. In the same circle, or in equal circles, equal chords are equally distant from the center; conversely, chords equally distant from the center are equal.
Σελίδα 149 - Sines that the bisector of an angle of a triangle divides the opposite side into parts proportional to the adjacent sides.