A water channel has the cross section of an isosceles trapezoid. See Fig. 4.76. (a) Show that a formula for the area of the cross section is A= bh + h 2 cot . (b) Find A if b =12.6 ft, h = 4.75 ft, and = 37.2. Fig. 4.76. b Lo
Chapter 4, Review Exercises #80
A water channel has the cross section of an isosceles trapezoid. See Fig. 4.76.
(a) Show that a formula for the area of the cross section is A= bh + h2cot θ.
(b) Find A if b =12.6 ft, h = 4.75 ft, and θ = 37.2°.
Fig. 4.76.
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Related Book For 
Basic Technical Mathematics
12th Edition
Authors: Allyn J. Washington, Richard Evans
ISBN: 9780137529896