Q. ∠1 and ∠2 are vertical angles. If m∠1=(2x+20)∘ and m∠2=(6x+4)∘, then find the measure of ∠2.Answer:
Vertical angles congruency: Vertical angles are congruent, so their measures are equal. Therefore, we can set the expressions for m/_1 and m/_2 equal to each other to find the value of x.m/_1=m/_2(2x+20)=(6x+4)
Setting up equation: Now we will solve for x by subtracting 2x from both sides of the equation to get the x terms on one side.(2x+20)−2x=(6x+4)−2x20=4x+4
Solving for x: Next, we subtract 4 from both sides to isolate the term with x. 20−4=4x+4−416=4x
Isolating x term: Now we divide both sides by 4 to solve for x.416=44xx=4
Substitute x into m/2: With the value of x found, we can now substitute it back into the expression for m/2 to find the measure of /2. m/2=6x+4 m/2=6(4)+4
Calculate m/2: We perform the multiplication and addition to find the measure of /2.m/2=24+4m/2=28
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