<em>43.96 cm</em>
<em>≈ 44 cm</em>
<em>Hi !</em>
<em>C₁ = 2π×r₁</em>
<em>C₂ = 2π×r₂</em>
<em>C₂ - C₁ = 2π×r₂ - 2π×r₁</em>
<em>= 2π(23cm - 16cm)</em>
<em>= 2×3.14×7</em>
<em>= 43.96 cm</em>
<em>Good luck !</em>
Answer:
44 cm
Step-by-step explanation:
r = 16,R = 23;2πR - 2πr
2π(R - r)
2 ×22/7(23 -16)
2×22/7×(7)
2×22=44cm...
:( :( :(
$15,920
A≈12.57cm²
A=1
4πd2=1
4·π·42≈12.56637cm²
Answer: 3/10
3/10 + 4/10= 7/10
10/10 - 7/10= 3/10
