Marie measured angle KLM.She said it was 60 degrees.What mistake did she make?
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oliviamath
To determine the mistake Marie made in measuring angle KLM, we need to understand the correct way to measure angles.
To measure angles accurately, you can use a protractor. The protractor is a tool with a semicircular shape divided into 180 degrees. The center of the protractor is aligned with the vertex of the angle, and one of its rays (the baseline) is aligned with one of the sides of the angle.
To measure the angle, align the baseline of the protractor with one of the sides of the angle. Check if any of the rays of the angle is aligned with any of the degree markings on the protractor. The degree marking that coincides with the other ray of the angle will give the measure of the angle.
Now, let's analyze Marie's mistake. She measured angle KLM as 60 degrees. If the angle were, indeed, 60 degrees, it means that both rays of the angle would align perfectly with the degree markings on the protractor. However, it is unlikely for an angle to measure exactly 60 degrees unless it is a well-known angle, such as a right angle or an equilateral triangle's angle.
Therefore, Marie's mistake is most likely that she wrongly measured or read the angle KLM as 60 degrees. To determine the correct measure of angle KLM, you would need to use a protractor or another appropriate measuring instrument.