Concrete Geometry for BeginnersAmerican Book Company, 1895 - 201 σελίδες |
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Αποτελέσματα 1 - 5 από τα 21.
Σελίδα 22
... Compare arc and arch . Is a semicircumference an arc ? 26. One arc of a circle is 5 times the remaining arc . The circumference is 120 meters . How many meters long is each arc ? 27. Find the length of an arc which is g 22 CIRCLES .
... Compare arc and arch . Is a semicircumference an arc ? 26. One arc of a circle is 5 times the remaining arc . The circumference is 120 meters . How many meters long is each arc ? 27. Find the length of an arc which is g 22 CIRCLES .
Σελίδα 24
... compare in length ? 43. Can you show the truth of the following statement ? PRINCIPLE 6. In the same circle or in equal cir- cles the greater of two chords is at a less distance from the center . 44. With a given point as a center and ...
... compare in length ? 43. Can you show the truth of the following statement ? PRINCIPLE 6. In the same circle or in equal cir- cles the greater of two chords is at a less distance from the center . 44. With a given point as a center and ...
Σελίδα 41
... compare ? 115. If angle d is 135 ° , how many degrees are there in each of the re- maining seven angles ? 116. Let the parallels AE and BF meet the line CD . If the angle BFD 112 ° , how many degrees has each of the remaining angles ...
... compare ? 115. If angle d is 135 ° , how many degrees are there in each of the re- maining seven angles ? 116. Let the parallels AE and BF meet the line CD . If the angle BFD 112 ° , how many degrees has each of the remaining angles ...
Σελίδα 44
... Compare the angles formed by the branches and twigs of different kinds of trees . 21. Apply your protractor to the lines of plaid goods , and find the number of degrees in the angles formed by them . 22. Measure angles in patterns of ...
... Compare the angles formed by the branches and twigs of different kinds of trees . 21. Apply your protractor to the lines of plaid goods , and find the number of degrees in the angles formed by them . 22. Measure angles in patterns of ...
Σελίδα 74
... Compare the number of degrees in the exterior angle with the number of degrees in the opposite interior angles . a A Б G F E 70. Draw an isosceles triangle whose vertical angle is 30 ° , and compare the number of degrees in any exterior ...
... Compare the number of degrees in the exterior angle with the number of degrees in the opposite interior angles . a A Б G F E 70. Draw an isosceles triangle whose vertical angle is 30 ° , and compare the number of degrees in any exterior ...
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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.