A(h, –6), B(2, 3) and C(–6, k) are the co-ordinates of vertices of a triangle
whose centroid is G (1, 5). Find h.
Answers
Answered by
1
Step-by-step explanation:
homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. ... Particle size distinguishes homogeneous solutions from other heterogeneous mixtures.
Answered by
7
A(x
1
,y
1
)=A(h,−6)
B(x
2
,y
2
)=B(2,3)
C(x
3
,y
3
)=C(−6,k)
∴ centroid G (x, y) = G (1, 5)
G is the centroid.
By centroid formula,
x=
3
x
1
+x
2
+x
3
∴1=
3
h+2+(−6)
∴3=h+2−6
∴3=h+4
∴h=3+4
∴h=7
y=
3
y
1
+y
2
+y
3
∴5=
3
−6+3+k
∴15=−3+k
∴k=15+3
∴k=18
∴h=7andk=18
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