Elements of Geometry and TrigonometryA.S. Barnes and Company, 1837 - 359 sider |
Inni boken
Resultat 1-5 av 19
Side 251
... feet and CB 672 feet , and also the contained angle ACB = 55 ° 40 ' : requi red the distance AB . Ans . 592.967 feet . 6. Being on a horizontal plane , and wanting to ascertain the height of a tower , standing on the top of an ...
... feet and CB 672 feet , and also the contained angle ACB = 55 ° 40 ' : requi red the distance AB . Ans . 592.967 feet . 6. Being on a horizontal plane , and wanting to ascertain the height of a tower , standing on the top of an ...
Side 274
... feet , we should understand that one square foot is taken for the unit of measure , and that this unit is contained ... feet , it will be most convenient to express the area in square feet ; if the linear dimensions are yards , it will ...
... feet , we should understand that one square foot is taken for the unit of measure , and that this unit is contained ... feet , it will be most convenient to express the area in square feet ; if the linear dimensions are yards , it will ...
Side 275
... feet . Ans . 663 . 3. To find the number of square yards in a triangle , whose base is 49 and altitude 25 feet . Ans . 68.7361 CASE II When two sides and their included angle are given . RULE . Add together the logarithms of the two ...
... feet . Ans . 663 . 3. To find the number of square yards in a triangle , whose base is 49 and altitude 25 feet . Ans . 68.7361 CASE II When two sides and their included angle are given . RULE . Add together the logarithms of the two ...
Side 276
... feet and 21.25 feet , and their included angle 45 ° ? Ans . 20.8694 CASE III . When the three sides are known . RULE . - 1 . Add the three sides together , and take half their sum . 2. From this half - sum subtract each side separately ...
... feet and 21.25 feet , and their included angle 45 ° ? Ans . 20.8694 CASE III . When the three sides are known . RULE . - 1 . Add the three sides together , and take half their sum . 2. From this half - sum subtract each side separately ...
Side 277
... feet are contained in a plank , whose length is 12 feet 6 inches , the breadth at the greater end 15 inches , and at the less end 11 inches ? Ans . 1313 sq . ft . 3. How many square yards are there in a trapezoid , whose parallel sides ...
... feet are contained in a plank , whose length is 12 feet 6 inches , the breadth at the greater end 15 inches , and at the less end 11 inches ? Ans . 1313 sq . ft . 3. How many square yards are there in a trapezoid , whose parallel sides ...
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Vanlige uttrykk og setninger
adjacent altitude angle ACB angle BAC ar.-comp base multiplied bisect Book VII centre chord circ circumference circumscribed common cone consequently convex surface cosine Cotang cylinder diagonal diameter dicular distance divided draw drawn equally distant equations equivalent feet figure find the area formed four right angles frustum given angle given line gles greater homologous sides hypothenuse inscribed circle inscribed polygon intersection less Let ABC logarithm number of sides opposite parallel parallelogram parallelopipedon pendicular perimeter perpen perpendicular plane MN polyedron polygon ABCDE PROBLEM Prop proportional PROPOSITION pyramid quadrant quadrilateral quantities radii radius ratio rectangle regular polygon right angled triangle S-ABCDE Scholium secant segment side BC similar sine slant height solid angle solid described sphere spherical polygon spherical triangle square described straight line tang tangent THEOREM triangle ABC triangular prism vertex
Populære avsnitt
Side 18 - If two triangles have two sides of the one equal to two sides of the...
Side 232 - ... the logarithm of a fraction is equal to the logarithm of the numerator minus the logarithm of the denominator.
Side 168 - The radius of a sphere is a straight line drawn from the centre to any point of the surface ; the diameter or axis is a line passing through this centre, and terminated on both sides by the surface.
Side 31 - Hence, the interior angles plus four right angles, is equal to twice as many right angles as the polygon...
Side 18 - America, but know that we are alive, that two and two make four, and that the sum of any two sides of a triangle is greater than the third side.
Side 241 - In every plane triangle, the sum of two sides is to their difference as the tangent of half the sum of the angles opposite those sides is to the tangent of half their difference.
Side 86 - 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'.
Side 168 - CIRCLE is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E.
Side 287 - How many square feet are there in the convex surface of the frustum of a square pyramid, whose slant height is 10 feet, each side of the lower base 3 feet 4 inches, and each side of the upper base 2 feet 2 inches ? Ans.
Side 64 - To inscribe a circle in a given triangle. Let ABC be the given triangle. Bisect the angles A and B by the lines AO and BO, meeting at the point 0.