Anyone know this? Help!!

0.1256/ 3.14= 0.04

= 0.2

D = 2R

0.2 x 2 = 0.4

Therefore, the diameter of the circle would be 0.4 square meters.

9514 1404 393

  k = 15

Step-by-step explanation:

Look for the missing factors that make all of the factors of 60k be squares.

  60 = 2² × 3 × 5

The factors 3 and 5 each have an odd exponent (1), so those two factors must be part of k.

  60k = 2² × 3 × 5 × k

is a perfect square when ...

  3 × 5 = k = 15

For k = 15, 60k = 900 = 30²