Question

Tell whether a triangle with sides of the given lengths is 45°-45°-90°, 30°-60°-90°, or neither.
11, 22, 19.1
A. 45°-45°-90°
B. 30°-60°-90°
C. neither

Answer 1

Ratio of a 30-60-90 triangle is:

\(\Large \color{purple}{\rightarrow x, 2x, x\sqrt{3} }\)

Ratio of a 45-45-90 triangle is:

\(\Large \color{purple}{\rightarrow x, x, x\sqrt2 }\)

Answer 2

Clearly, these are the sides of a 30-60-90 triangle.

Answer 3

x = 11 in the case.

Answer 4

it's x: xrt3: 2x in that order