Find the centroids of the triangles whose vertices are given below.(-7, 6), (2, -2), (8, 5)
Find the centroids of the triangles whose vertices are given below.(-7, 6), (2, -2), (8, 5)
(–7, 6), (2, –2), (8, 5)
The centroid of the triangle formed by the given coordinates is
\[= \left( \frac{- 7 + 2 + 8}{3}, \frac{6 - 2 + 5}{3} \right)\]
\[ = \left( 1, 3 \right)\]
Explanation:-
To find the centroid of a triangle with given coordinates, we need to take the average of the x-coordinates and the average of the y-coordinates of the three vertices of the triangle.
Let’s consider the given coordinates, which are (-7, 6), (2, -2), and (8, 5). To find the centroid, we need to take the average of the x-coordinates and the y-coordinates of these three points separately.
Average of the x-coordinates:
= (-7 + 2 + 8) / 3
= 3 / 3
= 1
So, the x-coordinate of the centroid is 1.
Average of the y-coordinates:
= (6 – 2 + 5) / 3
= 9 / 3
= 3
So, the y-coordinate of the centroid is 3.
Therefore, the centroid of the triangle formed by the given coordinates is (1, 3).
Chapter 5. Co-ordinate Geometry – Practice Set 5.2 (Page 115)