Three line segments can form a triangle if the length of the longest segment is greater than the sum of the lengths of the shorter segments.

They can form a triangle.
Now if c is the length of the longest side and a and b are the lengths of the shorter sides, then:
- if

, the triangle is right
- if

, the triangle is acute
- if

, the triangle is obtuse

The triangle is obtuse.
The answer is D.
The measure of angle 2 is 129 degrees
Answer:
Concept: Geometric Identities
- We want BC
- We will use geometric identities to get our value
- We have BA and AC and angle !A
- Hence arccos(89)= 21/x
- Hence X=25 km B
Answer:
x=1
Step-by-step explanation:
Answer:
i got 36:8, 54:12, and 72:16
Step-by-step explanation: