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/_1 and 
/_2 are vertical angles. If 
m/_1=(2x+20)^(@) and 
m/_2=(6x+4)^(@), then find the measure of 
/_2.
Answer:

1 \angle 1 and 2 \angle 2 are vertical angles. If m1=(2x+20) \mathrm{m} \angle 1=(2 x+20)^{\circ} and m2=(6x+4) \mathrm{m} \angle 2=(6 x+4)^{\circ} , then find the measure of 2 \angle 2 .\newlineAnswer:

Full solution

Q. 1 \angle 1 and 2 \angle 2 are vertical angles. If m1=(2x+20) \mathrm{m} \angle 1=(2 x+20)^{\circ} and m2=(6x+4) \mathrm{m} \angle 2=(6 x+4)^{\circ} , then find the measure of 2 \angle 2 .\newlineAnswer:
  1. Vertical angles congruency: Vertical angles are congruent, so their measures are equal. Therefore, we can set the expressions for m/_1m/\_1 and m/_2m/\_2 equal to each other to find the value of xx.m/_1=m/_2m/\_1 = m/\_2(2x+20)=(6x+4)(2x + 20) = (6x + 4)
  2. Setting up equation: Now we will solve for xx by subtracting 2x2x from both sides of the equation to get the xx terms on one side.(2x+20)2x=(6x+4)2x(2x + 20) - 2x = (6x + 4) - 2x20=4x+420 = 4x + 4
  3. Solving for x: Next, we subtract 44 from both sides to isolate the term with xx. \newline204=4x+4420 - 4 = 4x + 4 - 4\newline16=4x16 = 4x
  4. Isolating x term: Now we divide both sides by 44 to solve for xx.164=4x4\frac{16}{4} = \frac{4x}{4}x=4x = 4
  5. Substitute xx into m/2m/_{2}: With the value of xx found, we can now substitute it back into the expression for m/2m/_{2} to find the measure of /2/_{2}.
    m/2=6x+4m/_{2} = 6x + 4
    m/2=6(4)+4m/_{2} = 6(4) + 4
  6. Calculate m/2m/_{2}: We perform the multiplication and addition to find the measure of /2/_{2}.m/2=24+4m/_{2} = 24 + 4m/2=28m/_{2} = 28

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