Elements of Geometry: With Practical Applications Designed for BeginnersD. Appleton, 1853 - 320 σελίδες |
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Σελίδα 17
... proposition . 2. A theorem is a truth , which becomes evident by means of a train of reasoning called a ... propositions . 6. A scholium is a remark on one or several preceding propositions , which tends to point out their connection , B ...
... proposition . 2. A theorem is a truth , which becomes evident by means of a train of reasoning called a ... propositions . 6. A scholium is a remark on one or several preceding propositions , which tends to point out their connection , B ...
Σελίδα 19
... PROPOSITIONS . PROPOSITION I. THEOREM . When a straight line meets another straight line , the sum of the two adjacent angles , thus formed , is equal to two right - angles . Let the straight line AB be met by the straight line CD at ...
... PROPOSITIONS . PROPOSITION I. THEOREM . When a straight line meets another straight line , the sum of the two adjacent angles , thus formed , is equal to two right - angles . Let the straight line AB be met by the straight line CD at ...
Σελίδα 20
... Proposition suggests a very simple and sure means of making such test . Suppose the straight line AB to be the edge of a board , or any other plane surface . Apply one side of the square so as to coincide with AC ; then , along the ...
... Proposition suggests a very simple and sure means of making such test . Suppose the straight line AB to be the edge of a board , or any other plane surface . Apply one side of the square so as to coincide with AC ; then , along the ...
Σελίδα 21
... PROPOSITION II . THEOREM . When two lines intersect each other , the op- posite angles are equal . Let the two lines AB , CD inter- sect at the point F ; then will the angle AFC be equal to BFD , and the angle AFD equal to BFC . A D B ...
... PROPOSITION II . THEOREM . When two lines intersect each other , the op- posite angles are equal . Let the two lines AB , CD inter- sect at the point F ; then will the angle AFC be equal to BFD , and the angle AFD equal to BFC . A D B ...
Σελίδα 20
... PROPOSITION II . THEOREM . When two lines intersect each other , the op- posite angles are equal . Let the two lines AB , CD inter- sect at the point F ; then will the angle AFC be equal to BFD , and A the angle AFD equal to BFC . B For ...
... PROPOSITION II . THEOREM . When two lines intersect each other , the op- posite angles are equal . Let the two lines AB , CD inter- sect at the point F ; then will the angle AFC be equal to BFD , and A the angle AFD equal to BFC . B For ...
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Elements of Geometry With Practical Applications George R Perkins Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2023 |
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a+b+c altitude angle ABC angle ACD angle BAC bisect centre chord circ circular sector circumference circumscribed polygon coincide cone consequently convex surface cylinder diagonal diameter distance draw equal and parallel equiangular equilateral triangle equivalent exterior angle ference figure formed given line greater half the arc hypothenuse inscribed circle intersection isosceles join less Let ABC line CD lines drawn magnitude measured by half meet multiplied number of sides opposite angles parallel lines parallelogram parallelopipedon pendicular perimeter perpen perpendicular plane MN point G prism PROBLEM produced Prop proportional PROPOSITION pyramid radii radius rectangle regular polygon respectively equal right-angled triangle Sabc Schol Scholium scribed semicircle semicircumference side AC similar solid angle sphere spherical polygon square straight line suppose tangent THEOREM three sides triangle ABC triangular prism vertex VIII