Just fill in the blanks, Thank you

Question Answered step-by-step Just fill in the blanks, Thank you  Just fill in the blanks, Thank youImage transcription text1. In a circle of radius r, the measure of the central angle subtended by an arc of length r is called a 2. An anglewith no symbol is understood to be measured in 3. An equation with trigonometric expressions that is true forall values of the variable for which the expressions are defined is called a trigonometric COS NA … Show more… Show more  Math Trigonometry Share QuestionEmailCopy link Comments (0)