Primary Elements of Plane and Solid Geometry: For Schools and AcademiesWilson, Hinkle & Company, 1862 - 98 σελίδες |
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Αποτελέσματα 1 - 5 από τα 29.
Σελίδα 17
... third , they are parallel . EXERCISES .. 1. Prove that the sum of all the adjacent angles made by any number of straight lines meeting in one point is equal to four right angles . 2. Prove that if one of the four angles made by Evans ...
... third , they are parallel . EXERCISES .. 1. Prove that the sum of all the adjacent angles made by any number of straight lines meeting in one point is equal to four right angles . 2. Prove that if one of the four angles made by Evans ...
Σελίδα 20
... third angle would be nothing . Still less can a triangle have more than one obtuse angle . THEOREM VI . If two straight lines be drawn from the extremities of one side of a triangle to a point within , their sum will be less than that ...
... third angle would be nothing . Still less can a triangle have more than one obtuse angle . THEOREM VI . If two straight lines be drawn from the extremities of one side of a triangle to a point within , their sum will be less than that ...
Σελίδα 21
... third side BC will be equal to the third side EF , the angle B to the angle E , the angle C to the angle F , and the triangle ABC as a whole to the triangle DEF as a whole . If the triangle ABC be applied to the triangle DEF so that the ...
... third side BC will be equal to the third side EF , the angle B to the angle E , the angle C to the angle F , and the triangle ABC as a whole to the triangle DEF as a whole . If the triangle ABC be applied to the triangle DEF so that the ...
Σελίδα 26
... third angles are equal . 2. Prove that each angle of an equilateral triangle is equal to two - thirds of a right angle . 3. Prove that if a perpendicular be erected on the middle point of a straight line , any point in it will be ...
... third angles are equal . 2. Prove that each angle of an equilateral triangle is equal to two - thirds of a right angle . 3. Prove that if a perpendicular be erected on the middle point of a straight line , any point in it will be ...
Σελίδα 34
... third sides will also be equal . EXERCISES . 1. If the side of a square be 36 inches , what is its area in square inches ? What in square feet ? 2. If the base of a parallelogram be 3 feet and its altitude 4 feet and 6 inches , what is ...
... third sides will also be equal . EXERCISES . 1. If the side of a square be 36 inches , what is its area in square inches ? What in square feet ? 2. If the base of a parallelogram be 3 feet and its altitude 4 feet and 6 inches , what is ...
Άλλες εκδόσεις - Προβολή όλων
Primary Elements of Plane and Solid Geometry: For Schools and Academies E W (Evan Wilhelm) 1827-1874 Evans Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2021 |
Primary Elements of Plane and Solid Geometry: For Schools and Academies E. W. 1827-1874 Evans Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
AB² ABCDEF allel alternate angles altitude angle BAC angles ABC apothegm base multiplied bisect called chord circle circumference cone consequently convex surface diagonals diameter divided draw Eclectic Reader equal Theo equal to half equivalent frustum Geometry given point half the arc half the product Hence hypotenuse included angle inscribed angle intersect isosceles triangle Let ABCD let fall McGuffey's measured by half mutually equiangular mutually equilateral number of equal number of sides opposite parallelogram perimeter perpendicular perpendicular distance prism proportion proved Published by W. B. quadrilateral radii radius Ray's rectangle regular inscribed regular polygon regular pyramid right angles right parallelopiped right-angled triangle Schol semicircle side BC slant hight solidity square straight line SUPT tangent THEOREM trapezoid triangles ABC triangles are equal triangular vertex W. B. SMITH
Δημοφιλή αποσπάσματα
Σελίδα 69 - If from a point without a circle, a tangent and a secant be drawn, the tangent will be a mean proportional between the secant and its external segment.
Σελίδα 42 - The circumference of every circle is supposed to' be divided into 360 equal parts, called degrees ; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated by the characters °, ', ". Thus 23° 14' 35" is read 23 degrees, 14 minutes, and 35 seconds.
Σελίδα 21 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
Σελίδα 47 - It follows, then, that the area of a circle is equal to half the product of its circumference and its radius.
Σελίδα 72 - The areas of two circles are to each other as the squares of their radii. For, if S and S' denote the areas, and R and R
Σελίδα 33 - The square described on the hypothenuse of a right-angled triangle is equivalent to the sum of the squares described on the other two sides.
Σελίδα 38 - The area of a regular polygon is equal to half the product of its apothem and perimeter.
Σελίδα 52 - PROBLEM VII. Two angles of a triangle being given, to find the third angle. The three angles of every triangle are together equal to two right angles (Prop.
Σελίδα 30 - The area of a rectangle is equal to the product of its base and altitude.
Σελίδα 69 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz. either the sides adjacent to the equal...