Question

Write the order and angle of rotational symmetry of equilateral triangle. with the help of figure​

Answer 1

Answer:

Order 3

Equilateral triangle/Rotational symmetry

Answer 2

Answer:

Therefore the component of force along the x-axis is

Fx=Fcos(360−θ)=Fcos(360–300)=Fcos(60)

( ∵cos is positive in forth quadrent)

⇒Fx=300×12=150N

The component of force along the x-axis is

Fy=Fsin(360−θ)=Fsin(360–300)=F(−sin(60))

[ sin(360−θ)=−sinθ this is because (360−θ) lies in the forth quadrent where sin is negative according to ASTC rule.]

Fy=300×(−0.866)=−259.8N