Concrete Geometry for BeginnersAmerican Book Company, 1895 - 201 σελίδες |
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Αποτελέσματα 1 - 5 από τα 19.
Σελίδα 65
... equilateral triangle whose perimeter is 48 centimeters . 4. Find the difference between the length of the perim- eter of an equilateral triangle each of whose sides is 7 inches , and that of an equilateral rectangle each of whose sides ...
... equilateral triangle whose perimeter is 48 centimeters . 4. Find the difference between the length of the perim- eter of an equilateral triangle each of whose sides is 7 inches , and that of an equilateral rectangle each of whose sides ...
Σελίδα 67
... triangle ABC , is 115 ° . Find each of the base angles and the exterior angle BCE . D B A 15. The exterior angle formed by pro- longing the base of an isosceles ... equilateral triangles of the same dimen- sions TRIANGLES AND LINES . 67.
... triangle ABC , is 115 ° . Find each of the base angles and the exterior angle BCE . D B A 15. The exterior angle formed by pro- longing the base of an isosceles ... equilateral triangles of the same dimen- sions TRIANGLES AND LINES . 67.
Σελίδα 68
Adelia Roberts Hornbrook. 20. Draw three equilateral triangles of the same dimen- sions and place them so that they ... triangle ? How many in the sum of the angles of either one of the equilateral triangles ? 24. How many degrees are ...
Adelia Roberts Hornbrook. 20. Draw three equilateral triangles of the same dimen- sions and place them so that they ... triangle ? How many in the sum of the angles of either one of the equilateral triangles ? 24. How many degrees are ...
Σελίδα 69
... equilateral triangles and place them around a common point , as E. They form a regular hexagon . How many degrees are there in each angle formed at E ? How many degrees are there in angle ABC ? BCD ? In each angle of the hexagon ? Give ...
... equilateral triangles and place them around a common point , as E. They form a regular hexagon . How many degrees are there in each angle formed at E ? How many degrees are there in angle ABC ? BCD ? In each angle of the hexagon ? Give ...
Σελίδα 74
... equilateral triangle . How many degrees has the exterior angle DEG ? 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 ...
... equilateral triangle . How many degrees has the exterior angle DEG ? 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 ...
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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.