Question

19. In triangle ABC, angleA:angleB:angleC = 1:2:3 then find the angleA​

Answer 1

Answer:

lt angle

A=1x

B=2x

C=3x

angleA+B+C= 180

1x+2x+3x =180

6x=180

x=180/6

x=30

angle

A=1(30)=30

B=2(30)=60

C=3(30)=90

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