Question 15
Squares $ABCD$ and $A_1B_1C_1D_1$ have side length $a$. Let $S$ and $S_1$ be the areas of the two red regions respectively. Which statement is true?
Interpret the curves as the quarter-circles indicated by the drawing: radius a at C in the first square, and radius a/2 at each corner of the second square, ending at side midpoints. Compare the actual red regions. The source worked solution has a colour-region mismatch.
Interpret the curves as the quarter-circles indicated by the drawing: radius a at C in the first square, and radius a/2 at each corner of the second square, ending at side midpoints. Compare the actual red regions. The source worked solution has a colour-region mismatch.