Numerical Problems in Plane Geometry with Metric and Logarithmic Tables |
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Page 19
... hypotenuse and the greater leg . Find also the segments of the hypotenuse made by the perpendicular from the vertex of the right ; and this perpendicular itself . 19. In a whose diameter is 16m , find the length of the Ichord which is ...
... hypotenuse and the greater leg . Find also the segments of the hypotenuse made by the perpendicular from the vertex of the right ; and this perpendicular itself . 19. In a whose diameter is 16m , find the length of the Ichord which is ...
Page 20
... hypotenuse minus the square of the other leg . ) b2 = a2 + c2 - 2a x B D Solving for B D , B D = ( The square of the side opposite the acute of a △ is equal to the sum of the squares of the other two sides minus twice one of them by ...
... hypotenuse minus the square of the other leg . ) b2 = a2 + c2 - 2a x B D Solving for B D , B D = ( The square of the side opposite the acute of a △ is equal to the sum of the squares of the other two sides minus twice one of them by ...
Page 23
... ( hypotenuse c and legs a , b ) the formula a = √ c2 — b2 and b = √√ c2 — a2 , should be written a = √ ( c + b ) ( c — b ) , and b = √ ( c + a ) ( c - a ) , when loga- rithms are to be employed . 27. The chord A B , which is 4.2m ...
... ( hypotenuse c and legs a , b ) the formula a = √ c2 — b2 and b = √√ c2 — a2 , should be written a = √ ( c + b ) ( c — b ) , and b = √ ( c + a ) ( c - a ) , when loga- rithms are to be employed . 27. The chord A B , which is 4.2m ...
Page 25
... hypotenuse are 8cm and 9dm ; find the shorter leg . 46. In a whose radius is 41 feet are two parallel chords , one 80 feet , the other 18 feet . Find how far apart these two chords are . ( Two solutions . ) 47. If a chord of 75cm ...
... hypotenuse are 8cm and 9dm ; find the shorter leg . 46. In a whose radius is 41 feet are two parallel chords , one 80 feet , the other 18 feet . Find how far apart these two chords are . ( Two solutions . ) 47. If a chord of 75cm ...
Page 26
... hypotenuse are 27cm and 48cm ; find the lengths of the legs . 53. Find the width of a street , where a ladder 95.8 feet long will reach from a certain point in the street to a win- dow 67.3 feet high on one side , and to one 82.5 feet ...
... hypotenuse are 27cm and 48cm ; find the lengths of the legs . 53. Find the width of a street , where a ladder 95.8 feet long will reach from a certain point in the street to a win- dow 67.3 feet high on one side , and to one 82.5 feet ...
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Common terms and phrases
acres adjacent sides altitude angle is equal apothem arc intercepted arc subtended bisect bisector centre chord circum circumscribed College cologarithm construct a triangle decagon diagonals divided dodecagon equiangular polygon equilateral triangle escribed exterior extreme and mean feet 6 inches figure Find the area find the length Find the number Find the radius Find the side GEOMETRY given line given point given triangle homologous sides hypotenuse intercepted arcs interior angles intersect isosceles triangle joining the middle June line joining lines drawn logarithm mantissa mean proportional metres middle points miles opposite sides parallel sides parallelogram pentagon perimeter perpendicular PLANE GEOMETRY points of contact problems Prove quadrilateral radii rectangle regular hexagon regular inscribed regular polygon respectively rhombus right angles right triangle scribed secant Show similar triangles square feet straight line tangent Tech terior third side trapezoid triangle is equal University vertex vertices yards
Popular passages
Page 81 - Similar triangles are to each other as the squares of their homologous sides.
Page 102 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Page 80 - If four quantities are in proportion, they are in proportion by composition, ie the sum of the first two terms is to the second term as the sum of the last two terms is to the fourth term.
Page 94 - 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 102 - The logarithm of a number is the exponent of the power to which it is necessary to raise a fixed number, in order to produce the first number.
Page 141 - When the length of the primary unit of this system was determined it was supposed to be one ten-millionth of the distance from the equator to the pole.
Page 102 - The logarithm of a product is equal to the sum of the logarithms of its factors.
Page 69 - If from a point without a circle a tangent and a secant be drawn, the tangent is a mean proportional between the whole secant and its external segment.
Page 88 - An angle formed by two chords intersecting within the circumference of a circle is measured by one-half the sum of the intercepted arcs.
Page 75 - After remarking that the mathematician positively knows that the sum of the three angles of a triangle is equal to two right angles...