Elements of Geometry: With Practical Applications Designed for BeginnersD. Appleton, 1853 - 320 σελίδες |
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Αποτελέσματα 1 - 5 από τα 100.
Σελίδα 11
... angle . The point of intersection A , is the vertex of the angle ; and the lines AB , AC are the sides of the an- gle . Perhaps it would be better to define an angle as the opening between two lines which meet . A B An angle is ...
... angle . The point of intersection A , is the vertex of the angle ; and the lines AB , AC are the sides of the an- gle . Perhaps it would be better to define an angle as the opening between two lines which meet . A B An angle is ...
Σελίδα 12
... angle would consist of 100 degrees . No doubt the French division is more simple than the sexagesimal division ; but in many geometrical as well as physical inquiries , it is desirable to express certain aliquot parts of four right - angles ...
... angle would consist of 100 degrees . No doubt the French division is more simple than the sexagesimal division ; but in many geometrical as well as physical inquiries , it is desirable to express certain aliquot parts of four right - angles ...
Σελίδα 13
... angles with each other , as in the ad- . joining figure , it is obvious that the entire space will be divided into four equal portions , each being a right - angle . Therefore the en- tire circumference may , with great propriety , be ...
... angles with each other , as in the ad- . joining figure , it is obvious that the entire space will be divided into four equal portions , each being a right - angle . Therefore the en- tire circumference may , with great propriety , be ...
Σελίδα 20
... angle , ( Def . X , ) and the sum of the other two , FDC and CDB , composes the right - angle FDB : therefore the sum of the two angles ADC and BDC is equal to two right - angles . Cor . 1. Hence , also , conversely , if the two angles ...
... angle , ( Def . X , ) and the sum of the other two , FDC and CDB , composes the right - angle FDB : therefore the sum of the two angles ADC and BDC is equal to two right - angles . Cor . 1. Hence , also , conversely , if the two angles ...
Σελίδα 21
... angle at the folded corner will be very nearly a right - angle . 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 ...
... angle at the folded corner will be very nearly a right - angle . 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 ...
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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