Q. ∠1 and ∠2 are vertical angles. If m∠1=(2x+30)∘ and m∠2=(3x−10)∘, then find the measure of ∠1.Answer:
Vertical Angles Congruent: Vertical angles are congruent, which means they have the same measure. Therefore, we can set the expressions for m/angle 1 and m/angle 2 equal to each other to find the value of x.$2x+30 = 3x−10\)
Solve for x: Now, we solve for x by subtracting 2x from both sides of the equation.(2x+30)−2x=(3x−10)−2x30=x−10
Isolate x: Next, we add 10 to both sides of the equation to isolate x.30+10=x−10+1040=x
Substitute x into Angle 1: Now that we have the value of x, we can substitute it back into the expression for m/angle 1 to find the measure of angle 1.m/angle 1=2x+30m/angle 1=2(40)+30
Find Measure of Angle 1: Finally, we perform the multiplication and addition to find the measure of angle 1.m/angle 1 = 80+30m/angle 1 = 110 degrees
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