Elements of GeometryGinn and Heath, 1881 - 250 σελίδες |
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Αποτελέσματα 1 - 5 από τα 19.
Σελίδα 9
... Acute Angle is an angle less than a right angle ; as the angle BA C. 28. DEF . An Obtuse Angle is an angle greater than a right angle ; as the angle DEF . C D B B A C F D E 29. DEF . Acute and obtuse angles , in distinction from right ...
... Acute Angle is an angle less than a right angle ; as the angle BA C. 28. DEF . An Obtuse Angle is an angle greater than a right angle ; as the angle DEF . C D B B A C F D E 29. DEF . Acute and obtuse angles , in distinction from right ...
Σελίδα 37
... triangle is the side on which the triangle is supposed to stand . In an isosceles triangle , the side which is not one of the equal sides is considered the base . HYPOTENUSE . RIGHT . OBTUSE . ACUTE . 87. DEF TRIANGLES . 37 TRIANGLES.
... triangle is the side on which the triangle is supposed to stand . In an isosceles triangle , the side which is not one of the equal sides is considered the base . HYPOTENUSE . RIGHT . OBTUSE . ACUTE . 87. DEF TRIANGLES . 37 TRIANGLES.
Σελίδα 38
... Acute triangle is one which has all the angles acute . EQUIANGULAR . C B D 91. DEF . An Equiangular triangle is one which has all the angles equal . 92. DEF . In any triangle , the angle opposite the base is called the Vertical angle ...
... Acute triangle is one which has all the angles acute . EQUIANGULAR . C B D 91. DEF . An Equiangular triangle is one which has all the angles equal . 92. DEF . In any triangle , the angle opposite the base is called the Vertical angle ...
Σελίδα 39
... a straight line make equal acute angles with that line . 4. Show that , if two angles have their sides perpendicular , each to each , they are either equal or supplementary . PROPOSITION XXI . THEOREM . 98. The sum of the TRIANGLES . 39.
... a straight line make equal acute angles with that line . 4. Show that , if two angles have their sides perpendicular , each to each , they are either equal or supplementary . PROPOSITION XXI . THEOREM . 98. The sum of the TRIANGLES . 39.
Σελίδα 41
... acute angle of the one equal to an acute angle of the other , the other acute angles will be equal . 102. COR . 4. In a triangle there can be but one right angle , or one obtuse angle . 103. COR . 5. In a right triangle the two acute ...
... acute angle of the one equal to an acute angle of the other , the other acute angles will be equal . 102. COR . 4. In a triangle there can be but one right angle , or one obtuse angle . 103. COR . 5. In a right triangle the two acute ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
A B C AABC AACB ABCD acute adjacent angles alt.-int altitude apothem arc A B BC² bisect centre chord A B circumference circumscribed coincide COROLLARY describe an arc diagonals diameter divided Draw equal arcs equal distances equal respectively equiangular polygon equilateral equilateral polygon equivalent exterior angles figure given line given point given polygon greater homologous sides hypotenuse Iden isosceles triangle Let A B limit line A B measured by arc middle point number of sides parallelogram perimeter perpendicular plane PROBLEM prove Q. E. D. PROPOSITION quadrilateral radii radius equal ratio rect rectangles regular inscribed regular polygon required to construct rhombus right angles right triangle SCHOLIUM segment sides of equal sides of similar similar polygons subtend tangent THEOREM third side triangle ABC variable vertex vertices