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If one angle of a triangle is three times a second angle and the third is 20 degrees more than the second angle, the second angle, in degrees, is

Created: 7 years ago | Updated: 5 days ago

Updated: 5 days ago

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Mercantile Bank Ltd Mercantile Bank Ltd - Officer - 2004 গণিত ত্রিভুজ (Triangle)

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527

Best Ans:

প্রশ্ন: If one angle of a triangle is three times a second angle and the third is 20 degrees more than the second angle, the second angle, in degrees, is

Let, third angle be = x

Second angle = x - 20

First angle = 3( x - 20) = 3x - 60

Sum of angles of triangle = 180

Hence ATQ,

3x - 60 + x - 20 + x = 180

or,5x - 80 = 180

or,5x = 180 + 80 = 260

or,x = 260/5 = 52

∴Second Angle = 52–20 = 32° (ans)

7 years ago

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Md Azizur Rahman

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If one angle of a triangle is three times a second angle and the third is 20 degrees more than the second angle, the second angle, in degrees, is

প্রশ্ন: If one angle of a triangle is three times a second angle and the third is 20 degrees more than the second angle, the second angle, in degrees, is

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