Question

If r = 12, find r^2.

Answer 1

r² =144

Explanation:

If r = 12, find r²

substitute r for it's value and calculate the square

r² = 12² = 12* 12 = 144

Answer 2

144

Explanation:

r=12.

12^2 = 144

because...

12 x 12 = 144