Question

The area (A) of a ring is A = π r2 - π s2. Find the area A if π = 3.14, r = 6 and s = 4.
A = 62.8
A = 197.192
A = 31.4
A = 6.28

Answer 1

\[A=3.14\times6^2-3.14\times4^2\]

Answer 2

\[A=3.14(6^2−4^2)\]

Answer 3

A = π r2 - π s2
A=(3.14)(6^2)-(3.14)(4^2)
A=113.04-50.24
A=62.8
so option 1 is the answer