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TIER 2 — CHALLENGE 001 — The Flashlight Test - Leejohnston - 11-14-2025
[border]TIER 2 — Foundation Level[/border]
Tier 2 — Challenge 001 — The Flashlight Test
When you stand 2 metres from a wall, your flashlight creates a circle of light
with a diameter of 40 cm.
You step back to a distance of 5 metres, and the circle grows proportionally.
Question:
What is the new diameter of the circle of light?
Show your proportional reasoning.
? Submit Your Attempt
Post in: Challenge Attempts
Thread title:
Tier 2 Attempt — YourUsername — Challenge 001