Answer:
7.8
Step-by-step explanation:
1. D
2.B
3.A
4. D i think i can’t really see that question
5.C
Answer:
128.86cm squared
Step-by-step explanation:
The area of a circle is
π
r
2
πr
2
pi, r, squared.
π
×
1
cm
×
1
cm
=
1
π
cm
2
π×1cm×1cm=1πcm
2
Finally, subtract the area of the inner circle from the area of the outer rectangle.
Answer:
C. C is the only one that is rational out of all of them. The rest are irrational