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The diagram shows two congruent equilateral triangles whose overlap is a hexagon.

The areas of the smaller triangles, which are also equilateral, are 1, 1, 9, 9, 16 and 16, as shown.
16
16
X1
9
What is the area of the inner hexagon?

User CCSJ
by
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1 Answer

11 votes

Answer:

38

Explanation:

User Rcsumner
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