Multiple Choice
Given a right triangle with angle at vertex , which equation can be used to find the measure of angle if the length of the side opposite is and the hypotenuse is ?
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2. Trigonometric Functions on Right Triangles
Trigonometric Functions on Right Triangles
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
If the measure of arc QS is degrees and arc QS is a semicircle, what is the value of ?
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Verified step by step guidance1
Recall that a semicircle measures exactly 180 degrees because it represents half of a full circle.
Set up the equation by equating the given expression for arc QS to 180 degrees: \$4x - 18 = 180$.
Add 18 to both sides of the equation to isolate the term with \(x\): \$4x = 180 + 18$.
Simplify the right side: \$4x = 198$.
Divide both sides by 4 to solve for \(x\): \(x = \frac{198}{4}\).
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