The cross-section of a trough is an isosceles trapezoid. If the trough is made by bending up the sides of s strip of metal 12cm wide, what would be the angle of inclination of the sides and the width across the bottom if the cross-sectional area is to be a maximum?

The cross-section of a trough is an isosceles trapezoid. If the trough is made by bending up the sides of s strip of metal 12cm wide, what would be the angle of inclination of the sides and the width across the bottom if the cross-sectional area is to be a maximum?

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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Figure in plane geometry formed by two rays or lines that share a common endpoint, called the vertex. The angle is measured in degrees using a protractor. The different types of angles are acute, obtuse, right, straight, and reflex.

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