Question

the angles of triangle ABC in the ratio LA : LB: LC: = 1: 2: 3. find the magnitude of each angle

Answer 1

Answer:

Let the angles be a,a+d,a+2d.

Then, a+a+d+a+2d=180

=a+d=60. So angle B=60

o

Now,

c

b

=

sinC

sinB

=

2

3

⟹sinC=

3

2

×

2

3

=

2

1

⟹C=45

o

So, ∠A=75

o

......AsA+B+C=180

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Answer 2

Step-by-step explanation:

The answer of this eqetion is 180