Let x=small circle
2x = bigger circle
πx^2 + π(2x)^2 = 80π
x^2 + 4x^2 = 80
5x^2 = 80
x^2 = 16
x = +/- 4
but we need the positive one because there's no negative measurement so
the answers are:
4m and 8m
Answer:
- A
- Multiplying by 5
- Multiplying by 5
- Multiplying by 12.5
- Multiplying by 2
Step-by-step explanation:
Answer:
Ok
Step-by-step explanation:
Answer:
3x 10^4 NOT NEGATIVE! POSITIVE