16Hit1600
Advanced MathEasySide of a square from a doubled area

Advanced Math practice question

Two identical square tiles together cover 50 square centimetres. What is the side length of one tile, in centimetres?

Answer: 5

Each tile covers 25 cm², and 5² = 25.

Common wrong answers

If you answered 25
25 is the area of one tile.
If you answered 7.07
7.07 is √50, taking the root of the combined area.
If you answered 12.5
12.5 halves 25 instead of taking its square root.

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