Plane and Solid GeometryAmerican Book Company, 1899 - 384 σελίδες |
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Αποτελέσματα 1 - 5 από τα 70.
Σελίδα 12
... meet is called a Plane Angle , or simply an Angle . The lines are called the sides of the angle , A and the point where they meet is called its vertex . The lines OA and OB are the sides of the angle B- formed at the point 0 , and O is ...
... meet is called a Plane Angle , or simply an Angle . The lines are called the sides of the angle , A and the point where they meet is called its vertex . The lines OA and OB are the sides of the angle B- formed at the point 0 , and O is ...
Σελίδα 13
... meets another straight line so as to form two equal adjacent angles , each of the angles is called a Right Angle ; and each line is said to be perpendicular to the other . The sides of a right angle are therefore perpendicular to each ...
... meets another straight line so as to form two equal adjacent angles , each of the angles is called a Right Angle ; and each line is said to be perpendicular to the other . The sides of a right angle are therefore perpendicular to each ...
Σελίδα 16
... meets another straight line , the sum of the adjacent angles is equal to two right angles . 3. Draw a straight line ; from any point in it draw several lines extending in different directions . How does the sum of the consecutive angles ...
... meets another straight line , the sum of the adjacent angles is equal to two right angles . 3. Draw a straight line ; from any point in it draw several lines extending in different directions . How does the sum of the consecutive angles ...
Σελίδα 23
... meets another straight line , the sum of the adjacent angles is equal to two right angles . Data : Any straight line , as AB , and any other straight line , as CO , meeting it in the point 0 . To prove the sum of the adjacent angles ...
... meets another straight line , the sum of the adjacent angles is equal to two right angles . Data : Any straight line , as AB , and any other straight line , as CO , meeting it in the point 0 . To prove the sum of the adjacent angles ...
Σελίδα 24
... meets another , making two angles with it . One angle contains 87 ° . How many degrees are there in the other ? Ex ... meet a third line at the same point , making with the third line angles of 27 ° and 63 ° respectively , what is the ...
... meets another , making two angles with it . One angle contains 87 ° . How many degrees are there in the other ? Ex ... meet a third line at the same point , making with the third line angles of 27 ° and 63 ° respectively , what is the ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD adjacent angles altitude angle formed angles are equal angles compare apothem arc intercepted base bisector bisects called central angle chord circle whose center circumference circumscribed compare in length Construct a triangle Data diagonals diameter dihedral angles distance divide equal circles equidistant equilateral triangle equivalent exterior extremities Find the locus frustum given line given point given straight line Hence homologous homologous sides hypotenuse inscribed angle interior angles intersecting isosceles trapezoid isosceles triangle line drawn measured by arc middle point number of sides opposite sides parallel lines parallelogram parallelopiped pass perimeter perpendicular plane prism produced Proof proportion prove pyramid Q.E.D. Proposition quadrilateral radii radius ratio rect rectangle formed regular polygon respectively rhombus right angles right triangle secant segment similar sphere spherical triangle subtended surface tangent Theorem transversal trapezoid triangle ABC triangles are equal trihedral vertex vertical angle
Δημοφιλή αποσπάσματα
Σελίδα 103 - 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 147 - Sines that the bisector of an angle of a triangle divides the opposite side into parts proportional to the adjacent sides.
Σελίδα 65 - 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 45 - After remarking that the mathematician positively knows that the sum of the three angles of a triangle is equal to two right angles...
Σελίδα 62 - 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 59 - If the opposite sides of a quadrilateral are equal, the figure is a parallelogram.
Σελίδα 81 - A circle is a plane figure bounded by a curved line, every point of which is equally distant from a point within called the center.
Σελίδα 45 - In an isosceles triangle the angles opposite the equal sides are equal.
Σελίδα 31 - If two parallel lines are cut by a third straight line, the sum of the two interior angles on the same side of the secant line is equal to two right angles.
Σελίδα 88 - In the same circle, or in equal circles, equal chords are equally distant from the center; and, conversely, chords equally distant from the center are equal.