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Topic: Geometry Wednesday – The Secret of 180° and 360° 📐
Topic: Geometry Wednesday – The Secret of 180° and 360° 📐
The Lesson:
Geometry is like a puzzle. To find the missing piece (the angle), you just need to know what the total sum should be!
1. Angles on a Straight Line:
No matter how many lines you draw to split it, all angles on a straight line must add up to 180°.
Think of it like a half-circle (a protractor).
2. Angles at a Point (A Full Circle):
If you go all the way around a point, the angles must add up to 360°.
Example Problem:
Look at a straight line divided into two angles. If one angle is 120^\circ, what is the other angle (x)?
Step-by-Step:
We know the total is 180°
So, x + 120° = 180°
Subtract 120° from 180°
x = 60°
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