Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" An exterior angle of a triangle is equal to the sum of the two opposite interior angles. "
Junior High School Mathematics ... - Page 29
by Edson Homer Taylor, Fiske Allen - 1923
Full view - About this book

Plane Geometry

George Albert Wentworth - Geometry, Plane - 1899 - 272 pages
...COR. 7. In an equiangular triangle, each angle is one third of two right angles, or 60. 137. COR. 8. An exterior angle of a triangle is equal to the sum of the two opposite interior angles, and therefore greater than either of them. PROPOSITION XIX. THEOREM. 138. Tlie sum of two sides of...
Full view - About this book

The Essentials of Geometry

Webster Wells - Geometry - 1899 - 420 pages
...Cor. I. It follows from the above demonstration that Z BCD = Z ECD + Z J3OS = Z .4 + Z 5 ; hence 1. An exterior angle of a triangle is equal to the sum of the two opposite interior angles. 2. An exterior angle of a triangle is greater than either of the opposite interior angles. RECTILINEAR...
Full view - About this book

Plane Geometry

William James Milne - Geometry, Modern - 1899 - 258 pages
...acute angle of one are equal to a side and an acute angle of the ot^er, each to each. 115. Cor. V. Any exterior angle of a triangle is equal to the sum of the two opposite interior angles. 1. What interior angle is equal to Z t' ? Why ? 2. What interior angle is equal to Z s' ? Why ? 3....
Full view - About this book

The Essentials of Geometry

Webster Wells - Geometry - 1899 - 450 pages
...85. Cor. I. It follows from the above demonstration that ZBCD = ZECD + ZBCE = ZA + ZB; hence 1. .471 exterior angle of a triangle is equal to the sum of the two opposite interior angles. 2. An exterior angle of a triangle is greater than either of the opposite interior angles. 87. Cor....
Full view - About this book

Plane and Solid Geometry

William James Milne - Geometry - 1899 - 404 pages
...angle of one are equal to a side and an acute angle of the ofoer, each to each. " 115. Cor. V. Any exterior angle of a triangle is equal to the sum of the two opposite interior angles. 1. What interior angle is equal to Z t' ? Why ? 2. What interior angle is equal to Z s' ? Why ? 3....
Full view - About this book

Plane Geometry

Edward Brooks - 1901 - 278 pages
...angle of the other, the other acute angles are equal. TRIANGLES. PROPOSITION XVIII. — THEOREM. The exterior angle of a triangle is equal to the sum of the two opposite interior angles. Given. — Let ABC be any triangle, and CBD be its exterior angle. To Prove. — Then we are to prove...
Full view - About this book

Plane Geometry

Arthur Schultze - 1901 - 260 pages
...equal respectively to the hypotenuse and an acute angle of the other. PROPOSITION XIII. THEOREM 100. An exterior angle of a triangle is equal to the sum of the two remote interior angles. f / B CD Hyp. Z ACD is an exterior angle of A ABG. To prove Z ACD =...
Full view - About this book

Plane and Solid Geometry

Arthur Schultze, Frank Louis Sevenoak - Geometry - 1901 - 396 pages
...92. The altitudes upon the arms of an isosceles triangle are equal. PROPOSITION XIII. THEOREM 100. An exterior angle of a triangle is equal to the sum of the two remote interior angles. , B • CD Hyp. ZACD is an exterior angle of A ABC. To prove Z ACD...
Full view - About this book

Plane and Solid Geometry

Arthur Schultze, Frank Louis Sevenoak - Geometry - 1902 - 390 pages
...equal respectively to the hypotenuse and an acute angle of the other. PROPOSITION XIII. THEOREM 100. An exterior angle of a triangle is equal to the sum of the two remote interior cuujles. BGD Hyp. Z ACD is an exterior angle of A ABC. To prove Z ACD = ZA...
Full view - About this book

Plane and Solid Geometry

Arthur Schultze, Frank Louis Sevenoak - Geometry - 1901 - 394 pages
...equal respectively to the hypotenuse and an acute angle of the other. PROPOSITION XIII. THEOREM 100. An exterior angle of a triangle is equal to the sum of the two remote interior angles. B CD Hyp. Z ACD is an exterior angle of A ABC. To prove Z ACD = HIMT....
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF