Geometry Puzzle – Challenge 64
How many minutes does it take an hour hand to sweep 540 degrees? The hour hand moves 30 degrees per hour, so 540 degrees is 18 hours, which is 1080 minutes. The trick is connecting the angle-per-hour rate (30 degrees/hour) to the question. Key takeaways: A clock has 12 hour sections; 360/12 = 30 degrees […]
Geometry Puzzle – Challenge 63
A rectangle is built from 7 equal squares end-to-end, and the total area is 567 square feet. Because the length is 7 times the width, you can set up one equation, solve for the side of each square (9 ft), and find the rectangle dimensions (9 ft by 63 ft) and perimeter (144 ft) in […]
