A rain gutter is to be constructed from a metal sheet of width 30 cm by bending up one-third of the sheet on each side through an angle 0. How should 0 be chosen so that the gutter will carry the maximum amount of water? E 10 cm -– 10 cm →- 10 cm radians

Calculus: Early Transcendentals
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Chapter1: Functions And Models
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### Designing an Optimal Rain Gutter

A rain gutter is to be constructed from a metal sheet of width 30 cm by bending up one-third of the sheet on each side through an angle \( \theta \). How should \( \theta \) be chosen so that the gutter will carry the maximum amount of water?

#### Diagram Explanation:
The diagram illustrates a top view of the metal sheet after it has been bent to form a rain gutter. The total width of the metal sheet is 30 cm, and it has been divided into three equal parts, each measuring 10 cm in width. The side parts have been bent upwards to form the sides of the gutter. The angle of the bend is denoted by \( \theta \).

- \( \theta \) is the angle formed between the initially flat metal sheet and the bent-up side portions of the gutter.
- The diagram shows the dimensions and how the bending occurs symmetrically on both sides of the gutter.

The key here is to determine the optimal angle \( \theta \) in radians so that the gutter can carry the maximum amount of water.

#### Interactive Element:
Below the diagram is an interactive input field where students can input their calculated or chosen value for \( \theta \) in radians.

\[ \theta = \text{ } \boxed{\phantom{\rule{4cm}{0.5pt}}}  \text { radians} \]
  
By inputting different values for \( \theta \), students can explore how the shape and capacity of the rain gutter changes with varying angles, leading to discussions and calculations about optimizing gutter design.
Transcribed Image Text:### Designing an Optimal Rain Gutter A rain gutter is to be constructed from a metal sheet of width 30 cm by bending up one-third of the sheet on each side through an angle \( \theta \). How should \( \theta \) be chosen so that the gutter will carry the maximum amount of water? #### Diagram Explanation: The diagram illustrates a top view of the metal sheet after it has been bent to form a rain gutter. The total width of the metal sheet is 30 cm, and it has been divided into three equal parts, each measuring 10 cm in width. The side parts have been bent upwards to form the sides of the gutter. The angle of the bend is denoted by \( \theta \). - \( \theta \) is the angle formed between the initially flat metal sheet and the bent-up side portions of the gutter. - The diagram shows the dimensions and how the bending occurs symmetrically on both sides of the gutter. The key here is to determine the optimal angle \( \theta \) in radians so that the gutter can carry the maximum amount of water. #### Interactive Element: Below the diagram is an interactive input field where students can input their calculated or chosen value for \( \theta \) in radians. \[ \theta = \text{ } \boxed{\phantom{\rule{4cm}{0.5pt}}} \text { radians} \] By inputting different values for \( \theta \), students can explore how the shape and capacity of the rain gutter changes with varying angles, leading to discussions and calculations about optimizing gutter design.
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