Question
Joelle designed a logo using three triangles. The areas of the triangles were in the ratio of 3 : 7 : 12. He then shaded some parts of the logo as shown. What was the ratio of the shaded area to the unshaded area of the logo?
2 m

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Joelle designed a logo using three triangles. The areas of the triangles were in the ratio of 3 : 7 : 12. He then shaded some parts of the logo as shown. What was the ratio of the shaded area to the unshaded area of the logo?