Question 22
ABCD is a square of side 36 cm. E and F divide AD, G and H divide DC, and I and J divide CB into three equal parts, as shown. K is the midpoint of AB. Find the total shaded area, in cm².
Answer entry: enter the whole number only, without units. The paper uses four shaded digits with leading zeros; ordinary integer entry is accepted here.
Answer entry: enter the whole number only, without units. The paper uses four shaded digits with leading zeros; ordinary integer entry is accepted here.