Q. ∠1 and ∠2 are complementary angles. If m∠1=(2x−13)∘ and m∠2=(x−17)∘, then find the measure of ∠2.Answer:
Set up equation: Complementary angles add up to 90 degrees. We can set up an equation with the given expressions for m/angle 1 and m/angle 2 to find the value of x.Equation: (2x−13)+(x−17)=90
Combine like terms: Combine like terms in the equation.2x+x−13−17=903x−30=90
Isolate x: Add 30 to both sides of the equation to isolate the term with x.3x−30+30=90+303x=120
Solve for x: Divide both sides of the equation by 3 to solve for x.33x=3120x=40
Find angle 2: Now that we have the value of x, we can find the measure of angle 2 by substituting x into the expression for m/angle 2. m/angle 2=(x−17) degrees m/angle 2=(40−17) degrees m/angle 2=23 degrees