What is the equation for Kepler’s third law? (T = orbital period, r = radius)

Question

(1 point)
Responses

T2=r3
T2=r3

T3=r2
T3=r2

T2=r
T2=r

T=r2

Answer 1

The correct equation for Kepler’s third law is:

T² = r³

This means that the square of the orbital period (T) of a planet is proportional to the cube of the semi-major axis (r) of its orbit.