Find the value of x from the given figure and hence find the measure of
each angle of the triangle.
Answers
Answer:
x=27.5
Step-by-step explanation:
a=72.5
b=85
c=22.5
Answer: The angles are 65,35 and 80 .
Step-by-step explanation:
Hello gusainabhishek27,
we know the rule which states that the sum of the interior angles of a triangle is 180 degrees.
And ,the given angles here are (3x - 10),(60 - x) and (2x + 30).
This means 180 = (3x - 10) + (60 - x) + (2x + 30)
this implies that 180 = 3x + 2x - x - 10 + 60 + 30
therefore,180 = 4x + 80
solving this ,we get 4x = 180 - 80
so, x = 100/4 = 25
putting x in the given angles, we get
angle 1 = (3 * 25 ) - 10 = 75 - 10 = 65 degrees
angle 2 = (60 - 25) = 35 degrees
angle 3 = (2 * 25) + 30 = 50 + 30 = 80 degrees
so, the angles (3x - 10),(60 - x) and (2x + 30) are 65,35 and 80 respectively.
To verify, we can even add them and we get 65+35+80 = 180
Hope this helps. : )