The Ontario High School Geometry: TheoreticalCopp, Clark Company, 1910 - 302 σελίδες |
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Σελίδα 9
... half of a complete revolution from the initial position OA the angle formed is a straight angle . B A The arms of a straight angle are thus in the same straight line and extend in opposite directions from the vertex . At the point O ...
... half of a complete revolution from the initial position OA the angle formed is a straight angle . B A The arms of a straight angle are thus in the same straight line and extend in opposite directions from the vertex . At the point O ...
Σελίδα 10
... half of a straight angle , or one - quarter of a complete revolution . Each arm of a right angle is said to be perpen- dicular to the other arm . What is a vertical line ? a horizontal line ? An angle which is less than a right angle is ...
... half of a straight angle , or one - quarter of a complete revolution . Each arm of a right angle is said to be perpen- dicular to the other arm . What is a vertical line ? a horizontal line ? An angle which is less than a right angle is ...
Σελίδα 27
... half of a st . and .. each is a rt . L. .. BG is CD . 42. - Exercises Using ruler and compasses only , construct 4s of ( 1 ) , 45 ° ; ( 2 ) , 221 ° ; ( 3 ) , 135 ° ; ( 4 ) , 671 ° ; ( 5 ) , 225 ° . 43. Definitions . If one angle of a ...
... half of a st . and .. each is a rt . L. .. BG is CD . 42. - Exercises Using ruler and compasses only , construct 4s of ( 1 ) , 45 ° ; ( 2 ) , 221 ° ; ( 3 ) , 135 ° ; ( 4 ) , 671 ° ; ( 5 ) , 225 ° . 43. Definitions . If one angle of a ...
Σελίδα 29
... half of AB , draw two arcs , one on each side of AB . With centre B and the same radius draw two arcs cutting the first two at C and D. Join CD , cutting AB at E. E is the middle point of AB . Proof . Join CA , AD , DB , BC . • CAB ...
... half of AB , draw two arcs , one on each side of AB . With centre B and the same radius draw two arcs cutting the first two at C and D. Join CD , cutting AB at E. E is the middle point of AB . Proof . Join CA , AD , DB , BC . • CAB ...
Σελίδα 34
... half the sum of AB and AC . 8. The formed by joining the middle points of the three sides of an isosceles △ is isosceles . 9. AB is a given st . line and C is a given point without the line . Find the point D so that C and D may be ...
... half the sum of AB and AC . 8. The formed by joining the middle points of the three sides of an isosceles △ is isosceles . 9. AB is a given st . line and C is a given point without the line . Find the point D so that C and D may be ...
Άλλες εκδόσεις - Προβολή όλων
The Ontario High School Geometry [microform]: Theoretical A H (Alexander Hiram) 1 McDougall Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2021 |
The Ontario High School Geometry: Theoretical A. H. McDougall Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
The Ontario High School Geometry; Theoretical A. H. McDougall Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
AB² altitude base bisects centre chord circles touch circumference circumscribed common tangent concyclic Construct corresponding sides cyclic quadrilateral Describe a circle diagonals diagram diameter divided draw a st EFGH equal in area equiangular polygon equidistant equilateral exterior figure Find a point Find the locus fixed points given circle given point given st given straight line gm ABCD hypotenuse Hypothesis Hypothesis.-ABC inches inscribed circle isosceles KLMN length line drawn line joining mean proportional median drawn middle point opposite sides parallelogram perpendicular point of contact point of intersection polygon produced Proof Prove radius rect rectangle contained respectively equal rhombus right bisector secant segment Show sides equal similar square subtend tangent THEOREM triangle vertex vertices
Δημοφιλή αποσπάσματα
Σελίδα 130 - In every triangle, the square on the side subtending either of the acute angles, is less than the squares on the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the...
Σελίδα 242 - If two triangles have two sides of one proportional to two sides of the other, and the angles opposite one pair of corresponding sides...
Σελίδα 241 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Σελίδα 17 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another.
Σελίδα 254 - If from a point without a circle a secant and a tangent are drawn, the tangent is the mean proportional between the whole secant and its external segment.
Σελίδα 253 - When it is affirmed (for instance) that " if two straight lines in a circle intersect each other, the rectangle contained by the segments of the one is equal to the rectangle contained by the segments of the other...
Σελίδα 235 - Plot the locus of a point which moves so that the ratio of its distances from two fixed points remains constant.
Σελίδα 122 - Pythagoras' theorem states that the square of the length of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the lengths of the other two sides.
Σελίδα 66 - THE straight lines which join the extremities of two equal and parallel straight lines, towards the same parts, are also themselves equal and parallel.
Σελίδα 113 - TO describe a parallelogram equal to a given rectilineal figure, and having an angle equal to a given rectilineal angle.