We love running

Dr Zonga loves to run. Every day he follows the same routine - he runs to the park, three times around its perimeter (which could also be called its circumference, as it is a perfect circle) and then he heads back.  Every day, Dr zonga meets friends exactly half way back home and stops there to stretch out.  

Assumptions:

Distance from house to park: 850 metres

Radius of park: 400m

Question:  How far, in metres, does Dr Zonga run each day?

Bonus Question: Check out our 'Live at 5' video. Estimate how far Dean runs on the treadmill during the video (metres, not steps) 

Think you've got the answer?

Check it here   

This solution was given LIVE on Instagram, 5pm (CET), 26th March 2021. @Dr_Zonga. 

Click here to watch

* Subject to availability.  If unavailable, a substitute pack will be chosen at our discretion. For question 1, one correct answer will be picked out at random. Question 2: Closest to the correct answer wins.