Q. ∠1 and ∠2 are complementary angles. If m∠1=(2x+1)∘ and m∠2=(4x+11)∘, then find the measure of ∠2.Answer:
Define Complementary Angles: Understand the definition of complementary angles. Complementary angles are two angles whose measures add up to 90∘.
Set Up Equation: Set up the equation based on the definition of complementary angles.Since angle 1 and angle 2 are complementary, we have:m/angle 1+m/angle 2=90 degreesSubstitute the given expressions for m/angle 1 and m/angle 2:(2x+1)+(4x+11)=90
Combine Like Terms: Combine like terms in the equation.2x+4x+1+11=906x+12=90
Solve for x: Solve for x.Subtract 12 from both sides of the equation:6x+12−12=90−126x=78Divide both sides by 6:x=678x=13
Find Angle 2: Find the measure of angle 2 using the value of x. Substitute x=13 into the expression for m/angle 2: m/angle 2=4x+11m/angle 2=4(13)+11m/angle 2=52+11m/angle 2=63 degrees