Question

How can you calculate the area of the circle formed by ripples at t seconds?

A) A = πrt
B) A = πr²t
C) A = 2πrt
D) A = 0.5πr²t

Answer 1

The area of a circle formed by ripples at a certain time can be calculated using the formula A = πr²t.

Step-by-step explanation:

To calculate the area of a circle formed by ripples at a certain time, we need to use the formula A = πr²t. Here, r represents the radius of the circle and t represents the time in seconds. So the correct equation to calculate the area is A = πr²t, as mentioned in option B.