Elements of Geometry and Trigonometry |
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Page 9
... called points : a point , there- fore , has neither length , breadth , nor thickness , but position only . 3. A straight line is the shortest distance from one point to another . 4. Every line which is not straight , or composed of ...
... called points : a point , there- fore , has neither length , breadth , nor thickness , but position only . 3. A straight line is the shortest distance from one point to another . 4. Every line which is not straight , or composed of ...
Page 10
... called a rectilineal figure , or polygon , and the lines themselves , taken together , form the contour , or perimeter of the polygon . A4 ور B 14. The polygon of three sides , the simplest of all , is called a triangle ; that of four ...
... called a rectilineal figure , or polygon , and the lines themselves , taken together , form the contour , or perimeter of the polygon . A4 ور B 14. The polygon of three sides , the simplest of all , is called a triangle ; that of four ...
Page 11
... called the hypothenuse . Thus , in the triangle ABC , right - angled at A , the side BC is the hypothenuse . B 17. Among the quadrilaterals , we distinguish : The square , which has its sides equal , and its an- gles right - angles ...
... called the hypothenuse . Thus , in the triangle ABC , right - angled at A , the side BC is the hypothenuse . B 17. Among the quadrilaterals , we distinguish : The square , which has its sides equal , and its an- gles right - angles ...
Page 12
... called plus : it indicates addition . - The sign is called minus : it indicates subtraction . Thus , A + B , represents the sum of the quantities A and B ; A - B represents their difference , or what remains after B is taken from A ...
... called plus : it indicates addition . - The sign is called minus : it indicates subtraction . Thus , A + B , represents the sum of the quantities A and B ; A - B represents their difference , or what remains after B is taken from A ...
Page 35
... called the terms of the proportion . The first and last terms are called the two extremes , and the second and third terms , the two means . 3. Of four proportional quantities , the first and third are called the antecedents , and the ...
... called the terms of the proportion . The first and last terms are called the two extremes , and the second and third terms , the two means . 3. Of four proportional quantities , the first and third are called the antecedents , and the ...
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Common terms and phrases
adjacent adjacent angles altitude angle ACB angle BAC ar.-comp base multiplied bisect Book centre chord circ circumference circumscribed common cone consequently convex surface cylinder diagonal diameter dicular distance draw drawn equal angles equally distant equation equiangular equivalent figure formed four right angles frustum given angle given line gles greater homologous sides hypothenuse inscribed circle inscribed polygon intersection less Let ABC let fall logarithm measured by half number of sides opposite parallelogram parallelopipedon pendicular perimeter perpen perpendicular plane MN polyedron polygon ABCDE prism proportional PROPOSITION pyramid quadrant quadrilateral quantities radii radius ratio rectangle regular polygon right angled triangle S-ABC Scholium secant secant line segment side BC similar solid angle solid described sphere spherical polygon spherical triangle square described straight line tang tangent THEOREM triangle ABC triangular prism vertex