Multiple Choice
In a right triangle, if angle K measures and angle L measures , what is the measure of arc KL on the unit circle corresponding to angle K?
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2. Trigonometric Functions on Right Triangles
Trigonometric Functions on Right Triangles
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Which of the following angle measurements might you find in a right triangle?
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Verified step by step guidance1
Recall that a right triangle is defined as a triangle that has exactly one right angle, which measures \$90^\circ$.
Understand that the sum of the interior angles in any triangle is always \$180^\circ$.
Check each given angle measurement to see if it can be an angle in a right triangle: \$100^\circ\(, \)120^\circ\(, \)90^\circ\(, and \)180^\circ$.
Note that angles greater than \$90^\circ\( (like \)100^\circ\( and \)120^\circ\() are obtuse angles, and a triangle cannot have both a right angle and an obtuse angle because the sum would exceed \)180^\circ$.
Recognize that \$180^\circ\( cannot be an angle in a triangle because it represents a straight line, not an angle inside a triangle, so the only possible right triangle angle from the list is \)90^\circ$.
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