Lines, angles, triangles, circles.
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Q1 · Geometry · EASY
In a triangle ABC, angle A = 50° and angle B = 60°. What is the measure of angle C?
Q2 · Geometry · EASY
Two parallel lines are cut by a transversal. If one of the alternate interior angles is 75°, what is the measure of the other alternate interior angle?
Q3 · Geometry · MEDIUM
In a circle with center O, chord AB subtends an angle of 80° at the center. What is the angle subtended by the same chord at a point C on the major arc of the circle?
Q4 · Geometry · MEDIUM
In triangle PQR, PQ = 8 cm, QR = 15 cm, and PR = 17 cm. What type of triangle is PQR?
Q5 · Geometry · MEDIUM
In a triangle ABC, angle A = 60° and angle B = 80°. Which side is the longest?