Concrete Geometry for BeginnersAmerican Book Company, 1895 - 201 σελίδες |
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Αποτελέσματα 1 - 5 από τα 22.
Σελίδα 9
... four straight lines . 7. What is a broken line ? 8. Mark two points A and B , and connect them by ( 1 ) a straight line , ( 2 ) a broken line , ( 3 ) a curve , and ( 4 ) a double curve . Which is the shortest of the con- necting lines ...
... four straight lines . 7. What is a broken line ? 8. Mark two points A and B , and connect them by ( 1 ) a straight line , ( 2 ) a broken line , ( 3 ) a curve , and ( 4 ) a double curve . Which is the shortest of the con- necting lines ...
Σελίδα 12
... four right angles with two lines . 33. Make one right angle with two lines . vertex A , and the ends of the lines , B and C. - Mark its NOTE . The point where two lines meet is called the vertex of the angle . In reading an angle , the ...
... four right angles with two lines . 33. Make one right angle with two lines . vertex A , and the ends of the lines , B and C. - Mark its NOTE . The point where two lines meet is called the vertex of the angle . In reading an angle , the ...
Σελίδα 14
... four equal sides and four right angles is called a Square . 53. Is every square a rectangle ? Is every rectangle a square ? Explain your answers . 54. How long is each side of a square whose perimeter is 28 inches ? 55. In the square ...
... four equal sides and four right angles is called a Square . 53. Is every square a rectangle ? Is every rectangle a square ? Explain your answers . 54. How long is each side of a square whose perimeter is 28 inches ? 55. In the square ...
Σελίδα 25
... four tangents to a circle , placing two of them on each semicircumference , and prolong them until they inclose a surface . What figure is formed ? - NOTE . A plane figure bounded by four straight lines is called a Quadrilateral . 52 ...
... four tangents to a circle , placing two of them on each semicircumference , and prolong them until they inclose a surface . What figure is formed ? - NOTE . A plane figure bounded by four straight lines is called a Quadrilateral . 52 ...
Σελίδα 32
... four arcs inter- cepted by them ? SUGGESTION . - Cut out a similar figure and , folding it , place the parts one upon another and see if they coincide . A B D 46. If the angle AOC is bisected by a radius , how many degrees has each of ...
... four arcs inter- cepted by them ? SUGGESTION . - Cut out a similar figure and , folding it , place the parts one upon another and see if they coincide . A B D 46. If the angle AOC is bisected by a radius , how many degrees has each of ...
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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 diameter circle whose radius circumference complementary angles contains cube 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 radii regular hexagon regular polygon rhomboid rhombus right angle right triangle scalene triangle sector semicircle shorter sides show the truth 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 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 132 - A Polygon of three sides is called a Triangle; of four sides, a Quadrilateral; of five sides, a Pentagon ; of six sides, a Hexagon, etc.