That is the centroid.
The point where the lines from each vertex of the triangle to the midpoints of the opposite sides intersect.
For this question, you would have to use the midpoint formula.
(X1 +X2 / 2 , Y1 + Y2 / 2)
In other words,
(9 + -3 / 2 , -7 +5 / 2)
(6 / 2 , -2 / 2)
(3 , -1)
Your midpoint is (3, -1)
Answer:
it's 80.
Step-by-step explanation:
120-40= 80
....
B.) If two angles of one triangle are equal to two angles of another triangle, then the triangles are similar because of the "<span>ASA Similarity Postulate"
Hope this helps!</span>