Multiple choice general knowledge math & puzzles

Which one is incorrect?

  1. Area of Square= Length Square

  2. Circumference of a circle=Pi (Diameter of circle)

  3. Area of Circle=2?r

  4. Area of triangle = ½b × h

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The formula for the area of a circle is $\pi r^2$. The expression $2\pi r$ represents the circumference of a circle, making this statement incorrect.