Question 1130269
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The perimeter is 32cm, so the side length is 8cm.<br>
If diagonal AC is 8cm, then it divides the rhombus into two equilateral triangles.<br>
So diagonal BD, along with diagonal AC, divides the rhombus into four congruent 30-60-90 right triangles.<br>
Use your knowledge about the ratios of the side lengths of a 30-60-90 right triangle to answer the question.