Budget Diorama
Geometry
Level
1
The above shows a rhombus (shaded region) is formed by using one of each sides of all 4 equilateral triangles of equal size. If the area of one of these triangles is 7, what is the area of the rhombus?
The answer is 14.
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1 solution
Relevant wiki: Length and Area - Composite Figures
We can divide the rombus into two triangles, and each of these triangles has an area of 7; thus, area of the rhombus= 2 × 7 = 1 4