koordinat kartesius dari titik A(16;315°) dan B(10;0°)

Titik A (16 , 315°)
r = 16
alpha = 315°
Koordinat kartesius (x,y)
x = r cos alpha
= 16 cos 315°
= 16 cos 45° => kuadran IV
= 16 × 1/2√2
= 8√2
y = r sin alpha
= 16 sin 315°
= 16 sin 45° => kuadran IV
= 16 × -1/2√2
= -8√2
(x,y) = (8√2 , -8√2) Titik B (10 , 0°) x = 10 cos 0° = 10 × 1 = 10 y = 10 sin 0° = 10 × 0 = 0 (x,y) = (10 , 0)