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If the measurment of the angles of a triangle are 3b,2b,and 4b then what is the smallest angle

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Given:

The measurement of the angles of a triangle are 3b,2b,and 4b.

To find:

The smallest angle.

Solution:

According to the angle sum property, the sum of all angles of a triangle is 180 degrees.


3b+2b+4b=180^(\circ) [Angle sum property]


9b=180^(\circ)

Divide both sides by 9.


b=20^(\circ)

Now,


3b=3(20^(\circ))=60^(\circ)


2b=2(20^(\circ))=40^(\circ)


3b=4(20^(\circ))=80^(\circ)

Therefore, the smallest angle is 40 degrees.