176 P5.AP.JM.17083219
Level 2
In the figure, ABCD is a rectangle with an area of 912 cm2. Given that the area of Triangle DEF is 358 cm2, Find the area of Triangle BFC.
2 m
Rectangle Triangle Composite figure area
177 P6.RA.TL.17042601
Level 3
The figure, not drawn to scale, shows 2 rectangles overlapping each other. The ratio of the shaded area to the area of Rectangle A is 3 : 8. The ratio of the shaded area to the area of Rectangle B is 2 : 5. Find the ratio of the unshaded area to the total area of the figure.
3 m
Finding ratio LCM Overlapping area Unchanged difference Units method
178 P5.AP.JM.17083199
Level 2
In the figure, ABCD is a rectangle. Find the area of the shaded part.
2 m
Rectangle Triangle Composite figure area
179 P6.RA.TL.17042602
Level 3
The figure, not drawn to scale, on the right shows 2 rectangles overlapping each other. The ratio of the shaded area to the area of Rectangle X is 4 : 9. The ratio of the shaded area to the area of Rectangle Y is 3 : 6. Find the ratio of the unshaded area to the total area of the figure.
3 m
Finding ratio LCM Area perimeter Rectangle Overlapping area Unchanged difference Units method
180 P5.AP.JM.17083202
Level 2
Figure A shows a rectangular sheet of paper. Nellie cut it into 22 identical triangles one of which is shown in Figure B. There was no paper left over. What was The area of the rectangular sheet of paper before it was cut?
2 m
Rectangle Triangle Tiling Composite figure area

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