Elementary GeometryJ.B. Lippincott Company, 1893 |
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Αποτελέσματα 1 - 5 από τα 23.
Σελίδα 41
... rectangle ( c ) , whose angles are all equal , and therefore right angles . 4th . The square ( d ) , whose sides are all equal and whose angles are all equal . The square is at once a rhombus and a rectangle . a ь d PROPOSITION XXVIII ...
... rectangle ( c ) , whose angles are all equal , and therefore right angles . 4th . The square ( d ) , whose sides are all equal and whose angles are all equal . The square is at once a rhombus and a rectangle . a ь d PROPOSITION XXVIII ...
Σελίδα 42
... rectangles are equal when they have equal bases and equal altitudes . PROPOSITION XXIX . - THEOREM . 60. The opposite ... rectangle . 2. Theorem . - If two angles have the sides of one respectively parallel to the sides of the other ...
... rectangles are equal when they have equal bases and equal altitudes . PROPOSITION XXIX . - THEOREM . 60. The opposite ... rectangle . 2. Theorem . - If two angles have the sides of one respectively parallel to the sides of the other ...
Σελίδα 43
... rectangle are equal . 2. Theorem . The diagonals of a rhombus are perpendicular to each other . 3. Theorem . If the diagonals of a quadrilateral bisect each other , the figure is a parallelogram . 4. Theorem . - If the diagonals of a ...
... rectangle are equal . 2. Theorem . The diagonals of a rhombus are perpendicular to each other . 3. Theorem . If the diagonals of a quadrilateral bisect each other , the figure is a parallelogram . 4. Theorem . - If the diagonals of a ...
Σελίδα 53
... rectangle . If the first is a rectangle , the second is a square . B E E Ꭰ H G B F с E F H G B Ꭰ 35. The point of intersection of the diagonals of a parallelogram bisects every straight line drawn through it and terminated by the ...
... rectangle . If the first is a rectangle , the second is a square . B E E Ꭰ H G B F с E F H G B Ꭰ 35. The point of intersection of the diagonals of a parallelogram bisects every straight line drawn through it and terminated by the ...
Σελίδα 54
... rectangles are equal when they have equal bases and equal altitudes . PROPOSITION XXIX . The opposite sides of a parallelogram are equal , and the opposite angles are equal . PROPOSITION XXX . If two opposite sides of a quadrilateral ...
... rectangles are equal when they have equal bases and equal altitudes . PROPOSITION XXIX . The opposite sides of a parallelogram are equal , and the opposite angles are equal . PROPOSITION XXX . If two opposite sides of a quadrilateral ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD adjacent angles altitude angle BAC angles are equal apothem bisects centre chord coincide common cone construct convex Corollary cylinder Definition diagonal diameter dicular diedral angle distance divided draw equal circles equally distant equilateral equivalent Exercise find the locus frustum given circle given line given point given straight line greater Hence hypotenuse included angle inscribed angle intercepted arcs isosceles triangle lateral area lateral edges mean proportional middle point number of sides parallel lines parallelogram parallelopiped pass a plane pendicular perimeter perpen perpendicular plane MN plane passed polyedral angle Proposition VI Proposition VII quadrilateral radii radius ratio rectangle regular inscribed regular polygon respectively equal right angles right triangle Scholium secant secant line segment similar slant height sphere spherical polygon spherical triangle square surface tangent tetraedron Theorem triangle ABC triangles are equal triangular prism triedral upper base vertex volume
Δημοφιλή αποσπάσματα
Σελίδα 127 - The area of a rectangle is equal to the product of its base and altitude.
Σελίδα 196 - If a straight line is perpendicular to each of two straight lines at their point of intersection, it is perpendicular to the plane of those lines.
Σελίδα 131 - Two triangles having 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.
Σελίδα 245 - A truncated triangular prism is equivalent to the sum of three pyramids whose common base is the base of the prism, and whose vertices are the three vertices of the inclined section.
Σελίδα 278 - A lune is to the, surface of the sphere as the angle of the lune is to four right angles. Let...
Σελίδα 111 - The square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the lengths of the other two sides.
Σελίδα 48 - The three perpendiculars from the vertices of a triangle to the opposite sides meet in the same point.
Σελίδα 57 - A tangent to a circle is perpendicular to the radius drawn to the point of contact.
Σελίδα 34 - The sum of the three angles of any triangle is equal to two right angles.