Answer:
I haven't done these in a really long time so this could be wrong but it's better than nothing I guess.
Step-by-step explanation:
25-9=[16]-5 =-80
9-5=[4]-25 =-100
Step-by-step explanation:
is it like this ? no diagrams ?
Answer:
You times pi by the diameter
first set of answers are
1. 5.1
2 56.5
3 25.1
4 34.5
5 9.4
You times pi by r^2
second set of answers are
1 28.3
2 254.3
3 78.5
4 50.2
5 30.2