What’s the Height of the Red Bar?

Today’s Challenge

This is a very interesting problem I found on Maths StackExhange.

Think of how a light source would travel to find the answer.

Give this problem a try before jumping in for the solution!

Solution

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Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store