X _ + 4 = 12 2 step by step explanation
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Answer:
Angles of triangle are 40°,60° and 80°.
Step-by-step explanation:
Given:
if angles of a triangle are 2 is to 3 is to 4.
Let the common factor between the angles be 'x'.
So we can say that;
Angle 1 =
Angle 2 =
Angle 3 =
We need to find the value of each angle.
Solution:
Now we know that;
"Sum of all angles of triangle is 180°."
framing in equation form we get;
Substituting the values we get;
Dividing both side by 9 we get;
Angle 1 = .
Angle 2 =
Angle 3 =
Hence Angles of triangle are 40°,60° and 80°.