Instructional Video7:29
Curated Video

Can You Solve This Problem For 12 Year Olds In Singapore? 4 Overlapping Circles Puzzle

6th - 11th
What is the area between a large circle and 4 smaller circles as shown in the diagram? The large circle's diameter is 84. This problem was given to primary school students in Singapore. Can you figure it out? Watch the video for a...