एक त्रिभुज A B C में ∠C =3∠B=2(∠A+∠B) है। त्रिभुज के तीनो कोण ज्ञात कीजिये।
एक त्रिभुज A B C में ∠C =3∠B=2(∠A+∠B) है। त्रिभुज के तीनो कोण ज्ञात कीजिये।
ARUN KUMAR , 6 Years ago
Grade 12th pass
10 grade maths> एक त्रिभुज A B C में ∠C =3∠B=2(∠A+∠B) है।...
1 Answers
Arun
Last Activity: 6 Years ago
Dear student
We can write all angles in terms of A or any other angle
C = 3 B
3B = 2A + 2 B
Hence
B = 2A
C = 6A
Hence
As
A+ B + C = 180°
9A = 180 °
A = 20°
Now you can calculate all the other angles
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