Elements of Geometry and Trigonometry: With Practical Applications |
From inside the book
Results 1-5 of 33
Page 55
... or EGF . 157. The CHORD of an arc is the straight line joining its extremities ; thus EF is the chord of the arc EGF . D A C E G B BE F 158. The SEGMENT of a circle is the part of BOOK III THE CIRCLE, AND THE MEASURE OF ANGLES.
... or EGF . 157. The CHORD of an arc is the straight line joining its extremities ; thus EF is the chord of the arc EGF . D A C E G B BE F 158. The SEGMENT of a circle is the part of BOOK III THE CIRCLE, AND THE MEASURE OF ANGLES.
Page 56
With Practical Applications Benjamin Greenleaf. 158. The SEGMENT of a circle is the part of a circle included be- tween an arc and its chord ; as the surface included between the arc A EGF and the chord EF . 159. The SECTOR of a circle ...
With Practical Applications Benjamin Greenleaf. 158. The SEGMENT of a circle is the part of a circle included be- tween an arc and its chord ; as the surface included between the arc A EGF and the chord EF . 159. The SECTOR of a circle ...
Page 73
... segment , are equal ; because they are all measured by the half of the same arc , BO C. 202. Cor . 2. Every angle ... segment greater than a semicircle , is an acute angle ; for it is measured by the half of the arc BOC , less than a ...
... segment , are equal ; because they are all measured by the half of the same arc , BO C. 202. Cor . 2. Every angle ... segment greater than a semicircle , is an acute angle ; for it is measured by the half of the arc BOC , less than a ...
Page 76
... . 213. In different circles , SIMILAR ARCS , SEGMENTS , or SECTORS are such as correspond to equal angles at the centres of the circles . Thus , if the angles A and E are equal BOOK IV PROPORTIONS, AREAS, AND SIMILARITY OF FIGURES.
... . 213. In different circles , SIMILAR ARCS , SEGMENTS , or SECTORS are such as correspond to equal angles at the centres of the circles . Thus , if the angles A and E are equal BOOK IV PROPORTIONS, AREAS, AND SIMILARITY OF FIGURES.
Page 77
... segment BDC to the segment FHG , and the sector ABC to the B sector EF G. E A C F G D H 214. The ALTITUDE OF A TRIANGLE is the perpendicular , which measures the distance of any one of its vertices from the opposite side taken as a base ...
... segment BDC to the segment FHG , and the sector ABC to the B sector EF G. E A C F G D H 214. The ALTITUDE OF A TRIANGLE is the perpendicular , which measures the distance of any one of its vertices from the opposite side taken as a base ...
Other editions - View all
Common terms and phrases
A B C ABCD adjacent angles altitude 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 less Let ABC line A B logarithm logarithmic sine mean proportional 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 right angles right-angled triangle rods Scholium secant segment side A B similar sine slant height solidity solve the triangle sphere spherical polygon spherical triangle Tang tangent THEOREM triangle ABC triangle equal trigonometric functions vertex
Popular passages
Page 35 - 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.
Page 57 - 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.
Page 117 - Through a given point to draw a straight line parallel to a given straight line, Let A be the given point, and BC the given straight line : it is required to draw through the point A a straight line parallel to BC.
Page 50 - If any number of magnitudes 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; then will A : B : : A + C + E : B + D + F.
Page 77 - Two rectangles having equal altitudes are to each other as their bases.
Page 158 - 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.
Page 313 - FRACTION is a negative number, and is one more tftan the number of ciphers between the decimal point and the first significant figure.
Page 314 - 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.
Page 100 - The areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles. A D A' Hyp. In triangles ABC and A'B'C', To prove AABC A A'B'C' A'B' x A'C ' Proof. Draw the altitudes BD and B'D'.
Page 244 - RULE. — Multiply the base by the altitude, and the product will be the area.