If from any point in the base of an isosceles triangle parallels to the equal sides be drawn, show that a parallelogram is formed whose perimeter is equal to the sum of the equal sides of the triangle. Junior High School Mathematics ... - Page 35by Edson Homer Taylor, Fiske Allen - 1923Full view - About this book
| Andrew Wheeler Phillips, Irving Fisher - Geometry - 1896 - 272 pages
...sides, but greater than half their sum. Hint.— Apply g§ 7 and 95. CO" 130. Exercise. — If from a **point in the base of an isosceles triangle parallels to the sides are drawn,** a parallelogram is formed, the sum of whose four sides is the same wherever the point is situated (and... | |
| George Albert Wentworth - Geometry - 1896 - 296 pages
...and BD bisect Z B. Then BD = AD. PBOOF. ZA = JZ ABC= Z ABD. (Hyp.) .-. BD = AD. (g 156) BC Ex. 54. **If from any point in the base of an isosceles triangle parallels to the** legs are drawn, show that a parallelogram is formed whose perimeter is constant, and equal to the sum... | |
| George Washington Hull - Geometry - 1897 - 408 pages
...exterior angle is formed at the vertex of an isosceles triangle, its bisector is parallel to the base. 71. **If from any point in the base of an isosceles triangle parallels to the sides are drawn,** a parallelogram is formed whose perimeter is equal to the sum of the two equal sides of the triangle.... | |
| James Howard Gore - Geometry - 1898 - 232 pages
...non-parallel sides of a trapezoid are equal, the angles which they make with the bases are equal. 3. **If from any point in the base of an isosceles triangle parallels to the** equal sides are drawn, the perimeter of the parallelogram thus formed is equal to the sum of the equal... | |
| Webster Wells - 1898 - 264 pages
...joining the middle points of the sides of a triangle divide it into four equal triangles. (§ 130.) 65. **If from any point in the base of an isosceles triangle parallels to the** equal sides be drawn, the perimeter of the parallelogram formed is equal to the sum of the equal sides... | |
| George Albert Wentworth - Geometry, Plane - 1899 - 272 pages
...triangle to the three vertices is less than the perimeter, but greater than half the perimeter. Ex. 64. **If from any point in the base of an isosceles triangle parallels to the** legs are drawn, a parallelogram is formed whose perimeter is constant, being equal to the sum E, of... | |
| George Albert Wentworth - Geometry - 1899 - 500 pages
...triangle to the three vertices is less than the perimeter, but greater than half the perimeter. Ex. 64. **If from any point in the base of an isosceles triangle parallels to the** legs are drawn, a parallelogram is formed whose perimeter is constant, being equal to the sum E of... | |
| James Howard Gore - Geometry - 1899 - 266 pages
...DE, DF, parallel to AB, AC, respectively, divide BC into three equal parts. 26. If from a variable **point in the base of an isosceles triangle parallels to the sides are drawn,** a parallelogram is formed whose perimeter is constant. 27. The diagonals of a square or rhombus bisect... | |
| Webster Wells - Geometry - 1899 - 424 pages
...joining the middle points of the sides of a triangle divide it into four equal triangles. (§ 130.) 65. **If from any point in the base of an isosceles triangle parallels to the** equal sides be drawn, the perimeter of the parallelogram formed is equal to the sum of the equal sides... | |
| Edward Brooks - 1901 - 278 pages
...parallelogram form a rectangle whose diagonals are parallel to the sides of the parallelogram. 25. **If from any point in the base of an isosceles triangle parallels** are drawn to the legs, a parallelogram will be formed whose perimeter is constant and equal to the... | |
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