Two circles have radii 16cm and 23cm. what is the difference between their circumference ?
2 answers:
<em>43.96 cm</em>
<em>≈ 44 cm</em>
- Step-by-step explanation:
<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>≈ 44 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...
<h2>
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