Concrete Geometry for BeginnersAmerican Book Company, 1895 - 201 σελίδες |
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Αποτελέσματα 1 - 5 από τα 33.
Σελίδα 66
... triangle which has two of its sides equal is called an Isosceles Triangle . The unequal side is called the Base . 7. Find the base of an isosceles triangle whose perim- eter is 90 millimeters and each of whose equal sides is 35 ...
... triangle which has two of its sides equal is called an Isosceles Triangle . The unequal side is called the Base . 7. Find the base of an isosceles triangle whose perim- eter is 90 millimeters and each of whose equal sides is 35 ...
Σελίδα 67
... isosceles 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 triangle con- tains 3 times as many degrees as the interior base ...
... isosceles 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 triangle con- tains 3 times as many degrees as the interior base ...
Σελίδα 71
... triangle is equal to two right angles , or 180 degrees . 45. Draw different kinds of triangles , and repeat the process given in Ex . 44 illustrating Prin . 19 . 46. How many degrees ... isosceles triangle having its TRIANGLES AND LINES . 71.
... triangle is equal to two right angles , or 180 degrees . 45. Draw different kinds of triangles , and repeat the process given in Ex . 44 illustrating Prin . 19 . 46. How many degrees ... isosceles triangle having its TRIANGLES AND LINES . 71.
Σελίδα 72
Adelia Roberts Hornbrook. 51. Draw a right - angled isosceles triangle having its equal sides each 5 inches long , and show how many degrees there are in each of the complementary angles . QUERY . When is one angle complementary to ...
Adelia Roberts Hornbrook. 51. Draw a right - angled isosceles triangle having its equal sides each 5 inches long , and show how many degrees there are in each of the complementary angles . QUERY . When is one angle complementary to ...
Σελίδα 73
... isosceles triangle ABC , whose vertical angle is 40 ° . How many degrees are there in each of the angles x , y , and z ? 62. BD bisects the vertical angle of the isosceles triangle ABC , a base angle of which is 65 ° . How many degrees ...
... isosceles triangle ABC , whose vertical angle is 40 ° . How many degrees are there in each of the angles x , y , and z ? 62. BD bisects the vertical angle of the isosceles triangle ABC , a base angle of which is 65 ° . How many degrees ...
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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.