Given triangle abc, what is a possible first step to prove the triangle inequality theorem?

draw a line segment perpendicular to bc through a.
draw a line segment through the midpoint of bc and point a.
draw a line parallel to bc through a.
draw a line segment through the midpoint of ac and point b.

the answer is 45 i just did it on oddesy ware

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33

answer: i think its b

can you give me more details?