If the radius of a circle is 2.5 meters, what is the diameter

Diameter (d) = 2·radius (r)

Therefore,

d = 2 × 2.5 = 5

d = 5. 

Now if it was 2 meters it would be π square meters ~= 3.14m2. but its 2.5 meters so it equals to=5 and also it would be 5) because the diameter always equal to 2 x radius so the diameter of the circle would be 5)              5 x 3.142 = 15.7 Hope This Helps:)