Sarthaks Test
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Find the area of the blades of the magnetic compass shown in Fig.. 12.27. (Take √11 = 3.32).

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Area of the blades of magnetic compass 

= Area of ∆ADB + Area of ∆CDB 

Now, for area of ∆ADB 

Let, 2s = AD + DB + BA (Perimeter of ∆ADB)

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