Answer:
2π
Step-by-step explanation:
Area = πr^2
= π2^2
= 4π
4π is the area of the whole circle, so divide it in half to get the semicircle.
<u>= 2π</u>
Answer:
0.2
Step-by-step explanation:
6+4+3+2=total no of marble
=15
no of blue marble 3

Answer:
oof
Step-by-step explanation:
Answer:
I think u should do 2.5 ÷n=r
An irrational number can be written as a decimal, but not as a fraction and a rational number is a number that can be written as a ratio. That means it can be written as a fraction