Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement on the Quadrature of the Circle, and the Geometry of Solids; to which are Added, Elements of Plane and Spherical TrigonometryB. & S. Collins; W. E. Dean, printer, 1836 - 311 páginas |
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Página 5
... angles equal to one another , each of the angles is called a right angle ; and the straight line which stands on the other , is called a perpendicu- lar to it . 8. An obtuse angle is that which is greater than a right angle . 9. An ...
... angles equal to one another , each of the angles is called a right angle ; and the straight line which stands on the other , is called a perpendicu- lar to it . 8. An obtuse angle is that which is greater than a right angle . 9. An ...
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... equal sides . 19. An isosceles triangle is that which has only two sides equal . AAA 20. A scalene triangle is that ... angles . 24. Of four sided figures , a square is that which has all its sides equal and all its angles right angles ...
... equal sides . 19. An isosceles triangle is that which has only two sides equal . AAA 20. A scalene triangle is that ... angles . 24. Of four sided figures , a square is that which has all its sides equal and all its angles right angles ...
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... equal ; an equian- gular polygon , one which has all its angles equal . 32. Two polygons are mutually equilateral , when they have their sides equal to each other , and placed in the same order ; that is to say , when follow- ing their ...
... equal ; an equian- gular polygon , one which has all its angles equal . 32. Two polygons are mutually equilateral , when they have their sides equal to each other , and placed in the same order ; that is to say , when follow- ing their ...
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... equal to two sides and the included angle in the other , the triangles will be identical , or equal in all respects ... angles , to which the equal sides are opposite , shall be equal , each to each , viz . the angle ABC to the angle DEF ...
... equal to two sides and the included angle in the other , the triangles will be identical , or equal in all respects ... angles , to which the equal sides are opposite , shall be equal , each to each , viz . the angle ABC to the angle DEF ...
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... angles at the base of an isosceles triangle are equal to one another : namely , those to which the equal sides are opposite . If the triangle ABC have the side AC equal to the side BC : then will the angle B be equal to the angle A. For ...
... angles at the base of an isosceles triangle are equal to one another : namely , those to which the equal sides are opposite . If the triangle ABC have the side AC equal to the side BC : then will the angle B be equal to the angle A. For ...
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ABC is equal ABCD adjacent angles altitude angle ABC angle ACB angle BAC angles equal base BC bisected centre chord circle ABC circumference cosine cylinder demonstrated diameter divided equal and similar equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle fore four right angles given straight line greater Hence hypotenuse inscribed join less Let ABC Let the straight magnitudes meet multiple opposite angle parallel parallelogram parallelopiped perpendicular polygon prism PROP proposition quadrilateral radius ratio rectangle contained rectilineal figure remaining angle right angled triangle SCHOLIUM segment semicircle shewn side BC sine solid angle solid parallelopiped spherical angle spherical triangle square straight line BC THEOR third touches the circle triangle ABC triangle DEF wherefore