Concrete Geometry for BeginnersAmerican Book Company, 1895 - 201 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
12 inches 20 inches 9 inches altitude angle ABC angles formed apothem arc BC area and perimeter base angle bisects chord circle whose radius circumference complementary angles contains cube CUMULATIVE REVIEW decagon decimeters diagonal divided Draw a circle Draw a rectangle edge equal sides equilateral triangle exterior angles Find each side find its area Find the area Find the length Find the number Find the perimeter Find the ratio Find the sum geometric principle greater homologous sides hypotenuse inches long inches longer inclosed inscribed inscribed angle interior isosceles triangle longer sides meters middle point millimeters NOTE number of degrees parallel parallelogram parallelopiped pentagon perim perpendicular plane figure prolonging quadrilateral QUERY radii regular hexagon regular polygon rhomboid rhombus right angle right triangle scalene triangle sector semicircle shorter sides square feet square inches straight line surface tangent trapezium trapezoid triangle whose base twice vertex vertical angle width
Δημοφιλή αποσπάσματα
Σελίδα 82 - If two triangles have two sides and the included angle of one equal respectively to two sides and the included angle of the other, the triangles are equal.
Σελίδα 20 - A circle is a plane figure bounded by a curved line, every point of which is equally distant from a point within called the center.
Σελίδα 173 - The square of the sum of two numbers is equal to the square of the first, plus twice the product of the first and the second, plus the square of the second.
Σελίδα 132 - Triangle; of four sides a Quadrilateral; of five sides a Pentagon; of six sides a Hexagon; of seven sides a Heptagon; of eight sides an Octagon; of nine sides' a Nonagon; of ten sides a Decagon; of twelve sides a Dodecagon.
Σελίδα 177 - Pythagoras' theorem states that the square of the length of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the lengths of the other two sides.
Σελίδα 101 - Hence, the area of a trapezoid is equal to the product of its altitude by the line connecting the middle points of the sides which are not parallel.
Σελίδα 3 - The aim of the work is to awaken gradually, by simple and natural methods, the mathematical consciousness of the child, and to guide his perceptions in such a way as to lead him to lay a firm foundation for demonstrative geometry by means of his own observations and inventions.