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
| Joseph Battell - Force and energy - 1903 - 722 pages
...lorīg would reach more than a foot, or that one ten inches long could not reach a foot. ' 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 - 1904 - 496 pages
...triangle to the three vertices is less than the perimeter, hut 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... | |
| Edward Rutledge Robbins - Geometry, Plane - 1906 - 268 pages
...If two angles of a quadrilateral are supplementary, the other two are supplementary. [Use 165.] 110. **If from any point in the base of an isosceles triangle parallels to the** equal sides be drawn, the sum of the sides of the parallelogram formed will be equal to the sum of... | |
| Education - 1906 - 828 pages
...land three times as long as it is wide, and containing 16 A., 140 sq. rd. ? GEOMETRY. 1. Demonstrate: **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... | |
| Isaac Newton Failor - Geometry - 1906 - 440 pages
...MPN II to BC. By Ex. 200, PH + PK = AE. . -. PH -f PK + PL = AD, an altitude and .-. a constant.] 203 **If from any point in the base of an isosceles triangle parallels** are drawn to the legs, the perimeter of the parallelogram thus formed is constant. [DP = DB, and EP... | |
| Isaac Newton Failor - Geometry - 1906 - 431 pages
...to BC. By Ex. 200, PH -f PK = AE. . •. PH + PK + PL = AD, an altitude and . •. a constant. ] 203 **If from any point in the base of an isosceles triangle parallels** are drawn to the legs, the perimeter of the parallelogram thus formed is constant. [DP — DB, and... | |
| Edward Rutledge Robbins - Geometry - 1907 - 428 pages
...If two angles of a quadrilateral are supplementary, the other two are supplementary. [Use 165.] 110. **If from any point in the base of an isosceles triangle parallels to the** equal sides be drawn, the sum of the sides of the parallelogram formed will be equal to the sum of... | |
| Edward Rutledge Robbins - Geometry, Plane - 1915 - 280 pages
...line and side ; prove the sum of the three Js equals this altitude and hence equals a constant.] 34. **If from any point in the base of an isosceles triangle parallels to the** equal sides are drawn, the sum of the sides of the parallelogram formed is equal to the sum of the... | |
| Webster Wells, Walter Wilson Hart - Geometry, Plane - 1915 - 330 pages
...146. If the diagonals of a quadrilateral bisect each other, the figure is a parallelogram. Ex. 147. **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... | |
| John Charles Stone, James Franklin Millis - Geometry - 1916 - 298 pages
...intersecting at 0. Draw OE, OF, OG, OH, and prove EOG and FOH straight A" FB lines and hence diagonals. 10. **If from any point in the base of an isosceles triangle...the same perimeter for all positions of the point.** 11. ABCD is a square. On the diagonal BD, BM is taken equal to BC, and MN is drawn perpendicular toBD.... | |
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