Question

Evaluate the expression for the given value. πr*2, r=13

​(Type an exact answer in terms of π​.)

Answer 1

26π (This is the answer to the problem as it is posted.)

or

169π (This is the answer to the problem if you meant πr².)

Explanation:

π = π; r = 13

πr × 2 = π × 13 × 2 = 26π

If you meant πr², then

πr² = π × 13² = 169π