Question 22
Two squares are placed next to each other as shown. Their total shaded area is 50 cm². The smaller square has side length 6 cm. Find the side length, in cm, of the larger square.

Answer format: enter one whole number without units. Leading zeros are optional; the source paper answer sheet uses four digits.

Answer format: enter one whole number without units. Leading zeros are optional; the source paper answer sheet uses four digits.