Q. ∠1 and ∠2 are complementary angles. If m∠1=(x+11)∘ and m∠2=(3x−1)∘, 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/∠1 and m/∠2 to find the value of x.Equation: (x+11)+(3x−1)=90
Combine like terms: Combine like terms in the equation. 4x+10=90
Isolate x: Subtract 10 from both sides to isolate the term with x.4x=80
Solve for x: Divide both sides by 4 to solve for x.x=20
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=3(20)−1
Calculate angle 2: Calculate the value of m/angle 2.m/angle 2=60−1m/angle 2=59 degrees