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GMAT Problem Solving (PS) | Re: In the rhombus ABCD, the length of diagonal BD is 6 and the length of

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Bunuel wrote:

Tough and Tricky questions: Geometry.



In the rhombus ABCD, the length of diagonal BD is 6 and the length of diagonal AC is 8. What is the perimeter of ABCD?

A. 10
B. 14
C. 20
D. 24
E. 28


We are given the lengths of the diagonals in the rhombus; therefore, all we need to do is plug in both diagonals into the formula for the side length of a rhombus

The Side Length of a Rhombus
\sqrt{(d1)^2 + (d2)^2} 2
\sqrt{(8)^2 + (6)^2} 2
\sqrt{100} 2
10/2=
5 (because a rhombus is an equilateral
...

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