human
Calculate missing lengths of shapes by geometrical inference, where the lengths given are in the same units What is the area of the shaded section of this composite shape made from rectangles? ![A compound shape making an upside down T shape where there is a rectangle across the bottom and a rectangle attached above this, slightly to the left of the centre. The full width across the bottom is 16m, the partial width on the left is 2m, the partial width on the top block is 7m. The full height on the right is 9m, the partial height on the left is 3m. The shaded section is the right hand rectangle from the right edge up to where the top rectangle begins.]() \( 15 \mathrm{~m}^{2} \)
gpt
Uses an incorrect side length when splitting a composite shape into parts