Question

In a AABC, if ZA + 2B = 800 and 2B + 2 = 150°, calculate ZA, ZB and 2C.
If the angles of a triangle are in ratio 3:5:7, find the measure of all the three angles.
3. The angles of a triangle are arranged in ascending order of mangitude. If the difference​

Answer 1

Answer:Let one angle of a triangle be x.

Second angle will be x+10.

Third angle will be x+20.

Using theorem, Sum of interior angles of a triangle is 180  

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 .

Hence ∠A+∠B+∠C=180  

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⇒x+x+10+x+20=180  

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⇒3x+30=180  

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⇒x=50  

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∴ Angles are 50  

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,60  

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,70  

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