when we'expand our circle'we feel
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Answer:Answer:
21%
Step-by-step explanation:
Area of a circle = πr²
Find the new radius:
The radius is increased by 10%
New Radius = r + 0.1r = 1.1r
Find the new area:
Area of a circle = π(1.1r)² = 1.21πr²
Find the increase in area:
Increase = 1.21πr² - πr² = 0.21πr²
Find the percentage increase:
Percentage increase = (0.21πr² ÷ πr²) x 100 = 21%
Answer: The area is increased by 21%
Explanation:
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