Question 10
Exercise 5. As shown, the overlap of rectangles $ABCD$ and $EFGH$ is also a rectangle. The area of $ABCD$ is $174\text{cm}^2$ and the area of $EFGH$ is $52\text{cm}^2$, $EF=13$cm and $BC=29$cm. What is the area, in $\text{cm}^2$, of the entire figure?
**Editorial input convention:** Use the complete crossing shown: the two perpendicular rectangular strips each extend beyond the other on both sides of their rectangular overlap. Enter the union area, counting overlap once.
**Editorial input convention:** Use the complete crossing shown: the two perpendicular rectangular strips each extend beyond the other on both sides of their rectangular overlap. Enter the union area, counting overlap once.