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BCDE is a Rhombus. BD=28, and CE=20 what is ED. ?

BCDE is a Rhombus. BD=28, and CE=20 what is ED. ?-example-1
User StackOp
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1 Answer

5 votes

Given:

BCDE is a Rhombus.


BD=28\text{ ; CE=20}

Let 'a' be the side of a rhombus.


\begin{gathered} a=\frac{\sqrt[]{BD^2+CE^2}}{2} \\ a=\frac{\sqrt[]{28^2+20^2}}{2} \\ a=\frac{\sqrt[]{784+400}}{2} \\ a=\frac{\sqrt[]{1184}}{2} \\ a=17.2 \end{gathered}
ED=17.2

Option d is the final answer.

User Emanuele Giona
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