Find the length of the diameter of a sphere with a surface area of 24.63 miles2.

1.4 miles

2.8 miles

2.5 miles

1.25 miles

a sphere has cross sections that are circles.

true

false

2.8 miles.

True.

Step-by-step explanation:

Surface area = 4π r^2  (where r = the radius of the sphere)

24.63 = 4 π  r^2

r^2 = 24.63 / 4π

r =  √ ( 24.63 / 4π )

=  1.4 miles.

So the diameter = 2*1.4 = 2.8 miles (answer).

The answer to the second part of the question is true.

the probability that a bird is green (.30) is true

step-by-step explanation: