CK-12 Geometry - Second Edition

http://www.ck12.org Chapter 8. Right Triangle Trigonometry

2. Yes, the three angles in an isosceles right triangle are 45◦, 45 ◦,and 90◦. Isosceles right triangles will always
   be similar.
   3.^3 x= 27 x →x^2 = 81 →x=± 9


3. 4^2 + 42 =h^2
   h=

√

32 = 4

√

2