How many pairs of vertical angles are formed by five distinct lines that have a common point of intersection?

Pangolin14 Nov 1, 2020

#1**0 **

*How many pairs of vertical angles are formed by five distinct lines that have a common point of intersection?*

No need for mathematical formulae here. Just draw it and count them. **FIVE**

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Guest Nov 1, 2020

#7**0 **

There's a better way than drawing and counting, I can't keep track of it all.

But I noticed that for every 2 lines, they add 6 new angles.

Pangolin14
Nov 3, 2020