Question

Parametric equations of circle

Answer 1

Answer:

r = OM = radius of the circle = a and ∠MOX = θ. Here, x = a cos θ and y = a sin θ represent the parametric equations of the circle x2 + y2 = r2.

Answer 2

Answer:

The equations x = r cosθ, y = r sinθ are called the parametric equations of the circle  x² + y² = r²

Here ‘θ’ is called the parameter and 0 ≤ θ ≤ 2π