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A cylinder has a base radius of 
5cm and a height of 
16cm. What is its volume in cubic 
cm, to the nearest tenths place?
Answer: 
V=◻cm^(3)

A cylinder has a base radius of 5 cm 5 \mathrm{~cm} and a height of 16 cm 16 \mathrm{~cm} . What is its volume in cubic cm \mathrm{cm} , to the nearest tenths place?

Full solution

Q. A cylinder has a base radius of 5 cm 5 \mathrm{~cm} and a height of 16 cm 16 \mathrm{~cm} . What is its volume in cubic cm \mathrm{cm} , to the nearest tenths place?
  1. Formula Explanation: The formula to calculate the volume of a cylinder is V=πr2hV = \pi r^2 h, where rr is the radius of the base and hh is the height of the cylinder.
  2. Substitution Step: Substitute the given values into the formula: r=5cmr = 5 \, \text{cm} and h=16cmh = 16 \, \text{cm}. \newlineV=π(5cm)2(16cm)V = \pi(5 \, \text{cm})^2(16 \, \text{cm})
  3. Volume Calculation: Calculate the volume using the substituted values:\newlineV=π(25cm2)(16cm)V = \pi(25 \, \text{cm}^2)(16 \, \text{cm})\newlineV=π(400cm3)V = \pi(400 \, \text{cm}^3)
  4. Pi Calculation: Use the value of π\pi (approximately 3.141593.14159) to calculate the volume: V3.14159×400cm3V \approx 3.14159 \times 400 \, \text{cm}^3\newline V1256.636cm3V \approx 1256.636 \, \text{cm}^3
  5. Rounding Step: Round the volume to the nearest tenth:\newline V1256.6cm3V \approx 1256.6\,\text{cm}^3

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