8.2.PS-10 8.8 cm A company is designing a new cylindrical water bottle. The volume of the bottle will be 198 cm³

Question

8.2.PS-10
8.8 cm
A company is designing a new cylindrical water
bottle. The volume of the bottle will be 198 cm³.
The height of the water bottle is 8.8 cm. What is
the radius of the water bottle? Use 3.14 for .
The radius of the water bottle is about
cr
cm. (Round to the nearest tenth as needed.)
Questio

quangkhai · Answer

Answer:      Step-by-step explanation:    Givens    Volume = 198 cm^3  h = 8.8 cm  pi = 3.14  r = ?      Formula   V = pi * r^2 * h                                         Substitute givens into formula     Solution   198 cm^3 = 3.14 * 8.8 * r^2                     Combine the right  198 = 27.632 * r^2                                  Divide both sides by 27.632  198 / 27.632 = 27.632 * r^2 / 27.632   7.1656 = r^2                                            Switch the equation  r^2 =  7.1656                                           Take the square root of both sides  √r^2 =  √7.1656     r = 2.6768     Answer   r = 2.7 rounded to the nearest tenth

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