Elements of Plane and Spherical Trigonometry: With Practical ApplicationsR. S. Davis, 1862 - 490 páginas |
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Página 11
... triangle ABC . A B C D An ISOSCELES TRIANGLE is one which has two of its sides equal ; as the triangle D EF . A SCALENE TRIANGLE is one which has no two of its sides equal ; as the triangle G H I. 23. A RIGHT - ANGLED TRIANGLE is one ...
... triangle ABC . A B C D An ISOSCELES TRIANGLE is one which has two of its sides equal ; as the triangle D EF . A SCALENE TRIANGLE is one which has no two of its sides equal ; as the triangle G H I. 23. A RIGHT - ANGLED TRIANGLE is one ...
Página 18
... triangles ABC , DEF , let the side A B be equal to the side DE , the side A C to the side D F , and the angle A to the angle D ; B A D C E4 F then the triangles ABC , DEF will be equal . Conceive the triangle ABC to be applied to the ...
... triangles ABC , DEF , let the side A B be equal to the side DE , the side A C to the side D F , and the angle A to the angle D ; B A D C E4 F then the triangles ABC , DEF will be equal . Conceive the triangle ABC to be applied to the ...
Página 19
... triangles A B C , DEF will be equal . F Conceive the triangle A B C to be applied to the triangle , DEF , so that the side BC shall fall upon its equal , EF , the point B upon E , and the point C upon F. Then , since the angle B is ...
... triangles A B C , DEF will be equal . F Conceive the triangle A B C to be applied to the triangle , DEF , so that the side BC shall fall upon its equal , EF , the point B upon E , and the point C upon F. Then , since the angle B is ...
Página 20
... triangle at right angles , bisects also the verti- cal angle . 59. Cor . 3. Every equilateral triangle is also equian- gular . PROPOSITION VIII . - THEOREM . Α 60. If two angles of a triangle are equal , the opposite sides are also ...
... triangle at right angles , bisects also the verti- cal angle . 59. Cor . 3. Every equilateral triangle is also equian- gular . PROPOSITION VIII . - THEOREM . Α 60. If two angles of a triangle are equal , the opposite sides are also ...
Página 21
... triangle is less than the other side . PROPOSITION X. - THEOREM . 64. The greater side of any triangle is opposite the greater angle . In the triangle CAB , let the angle Α C be greater than B ; then will the side A B , opposite to C ...
... triangle is less than the other side . PROPOSITION X. - THEOREM . 64. The greater side of any triangle is opposite the greater angle . In the triangle CAB , let the angle Α C be greater than B ; then will the side A B , opposite to C ...
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Términos y frases comunes
A B C ABCD adjacent angles altitude angle ACB angle equal base bisect centre chord circle circumference circumscribed cone convex surface cosec Cosine Cotang cylinder diagonal diameter distance divided drawn equal Prop equilateral triangle equivalent exterior angle feet formed frustum gles greater half the sum hence homologous hypothenuse inches included angle inscribed interior angles isosceles less Let ABC line A B logarithmic sine measured by half multiplied number of sides parallel parallelogram parallelopipedon pendicular perimeter perpendicular polyedron prism PROBLEM PROPOSITION pyramid quadrantal radii radius ratio rectangle regular polygon Required the area right angles right-angled triangle rods Scholium secant segment side A B similar slant height solve the triangle sphere spherical polygon spherical triangle Tang tangent THEOREM triangle ABC triangle equal trigonometric functions vertex
Pasajes populares
Página 28 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Página 37 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Página 79 - Two rectangles having equal altitudes are to each other as their bases.
Página 251 - The convex surface of the cylinder is equal to the circumference of its base multiplied by its altitude (Prop.
Página 52 - If any number of quantities are proportional, any antecedent is to its consequent as the sum of all the antecedents is to the sum of all the consequents. Let a : b = c : d = e :f Now ab = ab (1) and by Theorem I.
Página 35 - If any side of a triangle be produced, the exterior angle is equal to the sum of the two interior and opposite angles.
Página 168 - If a straight line is perpendicular to each of two straight lines at their point of intersection, it is perpendicular to the plane of those lines.
Página 303 - Equal triangles upon the same base, and upon the same side of it, are between the same parallels.
Página 4 - The logarithm of any POWER of a number is equal to the product of the logarithm of the number by the exponent of the power. For let m be any number, and take the equation (Art. 9) M=a*, then, raising both sides to the wth power, we have Mm = (a")m = a"" . Therefore, log (M m) = xm = (log M) X »»12.
Página 102 - Two triangles, which have an angle of the one equal to an angle of the other, and the sides containing.