Question

7. If origin is the centroid of triangle A(a, 3),
B(5, b) and C(-1, 4). Find the values of a
and b.​

Answer 1

Answer:

u can see in the pic

Step-by-step explanation:

hope it'll help you

Answer 2

Answer:

$a = - 4 \: \: \: \: \: \: \: \: \: \: \: \: b = - 7$

Step-by-step explanation:

$( \frac{a + 5 - 1}{3} \: \: \: \: \: \: \: \: \: \: \frac{3 + b + 4}{3} ) = (0 \: \: \: \: \: \: \: \: \: \: 0) \\ \\ a + 4 = 0 \: \: \: \: \: \: \: \: \: \: \: b + 7 = 0 \\ \\ a = - 4 \: \: \: \: \: \: \: \: \: \: \: \: b = - 7$