B)4.3........................................
Answer:
Step-by-step explanation:
Your answer will be be because when you subtract 314 is one ask but instead of one actually just put one
Answer:
a
Step-by-step explanation:
let's find the area of the outer circle and the inside circle
the inside's circle area
A= π x 6²=36π
the outer's
A' = π x 4x²= 4πx²
A'-A=4πx²- 36π=160πcm² equivalent to x²- 9=40, so x²=49 implies x =sqrt(49)=7, x=7.
