How many degrees are there on a straight line?

There are \(180^\circ\) on a straight line. This is because a straight angle, which forms a straight line, measures exactly \(180^\circ\).

Would you like more details or have any questions? Here are some questions you might want to ask next:

1. What are adjacent angles?
2. How do you find the measure of an exterior angle in a polygon?
3. Can you explain the angle sum property of a triangle?
4. How are angles measured in different units?
5. What is the difference between acute, obtuse, and reflex angles?

**Tip:** Remember that when two angles are on a straight line and share a common side, they are supplementary and their measures add up to \(180^\circ\).

Discover why there are 180 degrees on a straight line and how angles on a straight line add up. Explore basic geometry concepts and the angle sum property in a clear explanation suitable for Grades 5-8.

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