Grade 4 Mathematics: Angles and Protractors

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Questions and Answers

What term describes the common endpoint of two rays that form an angle?

  • Ray
  • Measure
  • Vertex (correct)
  • Degree

Which of the following best describes the rays that form an angle?

  • Curved lines
  • Two rays with a common endpoint (correct)
  • Two lines meeting at a point
  • A single line segment

What tool is commonly used to measure angles?

  • Protractor (correct)
  • Ruler
  • Square
  • Compass

Which statement about angles is true?

<p>An angle can be formed by two rays with a shared endpoint. (B)</p> Signup and view all the answers

In the context of angles, what does the term 'degree' refer to?

<p>A unit of measure for angles (D)</p> Signup and view all the answers

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Study Notes

Understanding Angles

  • An angle consists of two rays that share a common endpoint.
  • The shared endpoint of the rays is known as the vertex of the angle.
  • The individual rays that form an angle are referred to as the sides of the angle.

Measuring Angles

  • Angles are measured in degrees, a standard unit for angular measurement.
  • A protractor is a specific tool designed to measure angles accurately in degrees.

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