Elements of Geometry and Trigonometry |
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Page 6
... Triangles , 231 Solution of Rectilineal Triangles by Logarithms , Solution of Right angled Triangles , 235 237 238 Solution of Triangles in general , · SPHERICAL TRIGONOMETRY . First principles , Napier's Circular Parts , · 246 252 Solution ...
... Triangles , 231 Solution of Rectilineal Triangles by Logarithms , Solution of Right angled Triangles , 235 237 238 Solution of Triangles in general , · SPHERICAL TRIGONOMETRY . First principles , Napier's Circular Parts , · 246 252 Solution ...
Page 11
... triangle , one which has two of its sides . equal ; a scalene triangle , one which has its three sides unequal . 16. A right - angled triangle is one which has a right angle . The side opposite the right angle is called the hypothenuse ...
... triangle , one which has two of its sides . equal ; a scalene triangle , one which has its three sides unequal . 16. A right - angled triangle is one which has a right angle . The side opposite the right angle is called the hypothenuse ...
Page 24
... right angled A triangles BAC , EDF , let the hypothenuse AC = DF , and the side BA = ED : then will the side BC = EF , the angle B A = D , and the angle C - F . D G CE T If the side BC is equal to EF , the like angles of the two triangles ...
... right angled A triangles BAC , EDF , let the hypothenuse AC = DF , and the side BA = ED : then will the side BC = EF , the angle B A = D , and the angle C - F . D G CE T If the side BC is equal to EF , the like angles of the two triangles ...
Page 30
Adrien Marie Legendre. Cor . 2. If two angles of one triangle are ... angled triangle , the sum of the two acute angles is equal to one right angle . Cor . 5. Since every ... right angles : hence , if all the angles of. 30 GEOMETRY .
Adrien Marie Legendre. Cor . 2. If two angles of one triangle are ... angled triangle , the sum of the two acute angles is equal to one right angle . Cor . 5. Since every ... right angles : hence , if all the angles of. 30 GEOMETRY .
Page 45
... right angled triangles ADC , CDB , will have AC = CB , and CD com- mon ; hence , AD is equal to DB ( Book I. Prop . XVII . ) . Again , since AD , DB , are equal , CG is a perpendicular erected from the mid- A Η dle of AB ; hence every ...
... right angled triangles ADC , CDB , will have AC = CB , and CD com- mon ; hence , AD is equal to DB ( Book I. Prop . XVII . ) . Again , since AD , DB , are equal , CG is a perpendicular erected from the mid- A Η dle of AB ; hence every ...
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Common terms and phrases
adjacent adjacent angles altitude angle ACB angle BAC ar.-comp base multiplied bisect Book VII centre chord circ circumference circumscribed common cone convex surface Cosine 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 parallelogram parallelopipedon pendicular perimeter perpen perpendicular perpendicular let fall plane MN polyedron polygon ABCDE PROBLEM proportional PROPOSITION pyramid quadrant quadrilateral quantities radii radius ratio rectangle regular polygon right angled triangle S-ABCDE Scholium secant segment similar Sine Cotang slant height solid angle solid described sphere spherical polygon spherical triangle square described straight line tang tangent THEOREM triangle ABC triangular prism vertex