Homework Help, Triangle Angles.?

Question

2. In Triangle ABC, AB = the square root of 1, BC = the square root of 2, and AC = the square root of 3 .
Which of the following are true?

I. The largest angle is B.
II. The triangle is a right triangle.
III. One angle of the triangle has measure 30.


A. I only
B. II only
C. I and II only
D. I, II, and III

Answer 1

AB = sqrt of 1 = 1
bc = sqrt of 2 = 1.44
ac = sqrt of 3 = 1.76

Therefore B is the largest angle
AB^2 + BC^2 = 1 + 2 = 3
AC^2 = 3
Therefore AB^2 + BC^2 = AC^2 - Right triangle

Answer c

Answer 2

Your question makes no sense. AB=1, BC=1.4, AC=1.7. These cannot be angles as the 3 must add up to 180 degrees. E. No correct answers.

PS. Pythagorean theorem only works with sides, not angles. A^2 + B^2 = C^2

Answer 3

only I is true.