Mathematics · Calculus - Rate of Change
A square plate is contracting at the uniform rate of 4 cm2/sec. The rate at which the perimeter is decreasing, when the side of the square is 20 cm, is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 115 cm/sec
- 24 cm/sec
- 32 cm/sec
- 425 cm/sec✓
Correct answer
25 cm/sec
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