Answer:
we can use centeroid formula of a triangle
that is (x1+x2+x3)/3
hope that helps : )
Step-by-step explanation:
N=km
72=k×48
72=48k
k=72/48
k=1.5
N=1.5m
N=1.5×144
N=216
D
Divide the whole thing by 2
2(X^2+8x-5)
X^2+8x. =5
Half of 8 is 4 sq it so you add 16
X^2+8x+16= 5+16
(X+4)^2=21
X = 1/3 yz
3x = yz
y = 3x/z