Q. ∠1 and ∠2 are complementary angles. If m∠1=(4x+7)∘ and m∠2=(x+28)∘, then find the measure of ∠2.Answer:
Set up equation: Complementary angles add up to 90 degrees. Set up the equation using the given expressions for m/_1 and m/_2.m/_1+m/_2=90°(4x+7)°+(x+28)°=90°
Combine like terms: Combine like terms to solve for x.4x+x+7+28=905x+35=90
Isolate x term: Subtract 35 from both sides to isolate the term with x.5x+35−35=90−355x=55
Find value of x: Divide both sides by 5 to find the value of x.55x=555x=11
Substitute x back: Now that we have the value of x, substitute it back into the expression for m/2 to find the measure of /2. m/2=(x+28)∘ m/2=(11+28)∘ m/2=39∘
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