Atheater production group is making frames to support wall-like props. three-foot beams form right triangles with 10-foot beams to allow them to stand, as shown in the image.
what is x, the angle at which the diagonal beam meets the 10-foot beam at the top of the frame?
16.7°
17.5°
72.5°
73.3°

For this case, we can use the following trigonometric relationship:

Where,

C.O: opposite leg

AC; adjacent leg

x: angle

Substituting values we have:

From here, we clear the value of x.

We have then:

the angle at which the diagonal beam meets the 10-foot beam at the top of the frame is:

16.7°

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.