Is this statement always, sometimes, or never true?If ∠R and ∠S are acute angles in an isosceles right triangle, then cos(R)=sin(S).alwayssometimesneverSubmit
Question
Is this statement always, sometimes, or never true?If ∠R and ∠S are acute angles in an isosceles right triangle, then cos(R)=sin(S).alwayssometimesneverSubmit
Solution
The statement is always true. In an isosceles right triangle, the two acute angles are complementary, meaning they add up to 90 degrees. The cosine of one angle is equal to the sine of its complement, so cos(R) is always equal to sin(S).
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