Q. The angles of a triangle are x,y and 40∘. The difference between the two angles x and y is 30∘. Find x and y.
Triangle Angle Sum Equation: The sum of the angles in any triangle is 180 degrees. We can write this as an equation:x+y+40=180
Difference Between Angles: We also know that the difference between angles x and y is 30 degrees. We can express this as another equation:x−y=30
Solving System of Equations: Now we have a system of two equations with two variables:1) x+y+40=1802) x−y=30We can solve this system by using the substitution or elimination method. Let's use the elimination method by adding the two equations together to eliminate y.(x+y+40)+(x−y)=180+30
Adding Equations: Simplifying the equation, we get: 2x+40=210
Solving for x: Now, we solve for x by subtracting 40 from both sides of the equation:2x=210−402x=170
Substitute x to Find y: Divide both sides by 2 to find the value of x: x=2170 x=85
Final Solution: Now that we have the value of x, we can find y by substituting x back into one of the original equations. Let's use the second equation:x−y=3085−y=30
Final Solution: Now that we have the value of x, we can find y by substituting x back into one of the original equations. Let's use the second equation:x−y=3085−y=30 Solve for y by adding y to both sides and subtracting 30 from both sides:y=85−30y=55
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