Question

in triangle ABC ,if ( a + b + c)(a + b + c) = 3ac,then find B​

Answer 1

Answer:

If a,b,c are angles

a+b+c=180

so

(a+b+c)(a+b+c)=180*180=3ac

Step-by-step explanation:

so

ac=10800

Now if a is 90 and c is 90

even then ac<10800

but it is not possible to have 2 right angles in a triangle.

So QUESTION has a mistake

unless

a+b+c=3ac

in which case

3ac=180

so ac=60

so a can be 15

and b.....4 and c...180-15-4

or c =161

Hope it works .