plisss besok dikumpulkan

9][ A
K(6,4)
L(9,10)
M(12,16)
N(15, 22)
...
(x,y) = (3n + 3 , 6n - 2)
(36, n) = (36 , 64)
___
3n + 3 = 36 ---> n = 11
6n - 2 = 66 - 2 = 64

10][ A
Koordinat titik berat ∆
T = 1/3 ((-3 + 9 + 6) , (7 - 10 - 12))
T = 1/3 (12 , -15)
T = (4 , -5)

11][
P(-4,3)
r = √((-4)² + 3²) = 5

tan a = 3/-4 ---> a = 143,11

P(-4,3) ---> P(5, 143,11°)

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