Answer:
Divide each side by 2pi
Square each side
Multiply each side by k
Explanation:
t = 2pi sqrt(m/k)
Divide each side by 2pi
t/ 2pi = 2pi /2pi sqrt(m/k)
t / 2 pi = sqrt(m/k)
Square each side
(t / 2 pi )^2= (sqrt(m/k))^2
t^2/ 4 pi^2 = m/k
Multiply each side by k
t^2 k / 4 pi ^2 = m/k*k
t^2 k / 4 pi ^2 = m