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Use the image to answer the question. An illustration shows a right triangle. The right angle is at the left; the top angle is labeled a; and the angle on the right is labeled b. A line extending outward from angle a forms an exterior angle of 142 degrees.Use the properties of exterior angles of triangles to find angle b .(1 point)Responses38° 38 degrees232° 232 degrees52° 52 degrees92° 92 degrees

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Answered by GPT-5 mini AI
52°

Reason: An exterior angle equals the sum of the two remote interior angles. So 142° = 90° + b, hence b = 142° − 90° = 52°.