Q. In △HIJ,m∠H=(6x+10)∘,m∠I=(3x−6)∘, and m∠J=(6x+11)∘.Find m∠J.Answer:
Recognize Triangle Angle Sum: First, recognize that the sum of the angles in any triangle is 180 degrees.
Write Equation for Triangle HIJ: Write an equation that represents the sum of the angles in triangle HIJ.m/_H+m/_I+m/_J=180∘
Substitute Given Expressions: Substitute the given expressions for m/H, m/I, and m/J into the equation.egin{equation}(6x + 10)^{2} + (3x - 6)^{2} + (6x + 11)^{2} = 180^{2}egin{equation}
Combine Like Terms: Combine like terms to simplify the equation. 6x+10+3x−6+6x+11=180
Isolate Variable Term: Further simplify the equation by combining like terms. 15x+15=180
Solve for x: Subtract 15 from both sides to isolate the term with the variable x.15x+15−15=180−1515x=165
Substitute x into m/J Expression: Divide both sides by 15 to solve for x.1515x=15165x=11
Calculate m/J Value: Now that we have the value of x, substitute it back into the expression for m/J to find the measure of angle J. m/J=(6x+11)@ m/J=(6(11)+11)@
Calculate m/J Value: Now that we have the value of x, substitute it back into the expression for m/J to find the measure of angle J.m/J=(6x+11)@m/J=(6(11)+11)@Calculate the value of m/J.m/J=(66+11)@m/J=77@
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