Question
Asked Sep 22, 2019
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A rectangular beam is to be cut from a cylindrical log of diameter 20cm. Express the cross sectional area of the beam as a function of the angle.

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Expert Answer

Step 1

It is given that the rectangular beam is cut from a cylindrical log of diameter 20cm.

Therefore, Diameter (AC) =20cm

Step 2

The cross sectional area of the rectangular beam is given by:

Area Width x Depth
(1)
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Area Width x Depth (1)

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Step 3

Consider the diagram as shown,

W...

B
20cm
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B 20cm

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Trigonometry

Trigonometric Ratios

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