The three medians of a triangle intersect at the centroid of the triangle.
The centroid is 2/3 of the way from a vertex to the midpont of the opposite side.
BG = (2/3)BF
BG = (2/3) * 9
BG = 6
Using the catchphrase SohCahToa, we can determine that the cosine ratio is equal to the length of the side adjacent to the angle over the length of the hypotenuse of the right triangle.
To find the cos∠A, we will look for side lengths BC and AB.
cosA =
Since
is already in it's simplest form, we can conclude that the cosine of ∠A is
.
Hope this helps! :^)
Answer:
down
Step-by-step explanation:
X+7x=180
8x=180
x= 22.5
the larger angle is 157.5 degrees.