In the diagram, KL is equal to 2 square root of 2 , LM is equal to square root of 5 , and MN is equal to square root of 2 What is the perimeter of isosceles trapezoid KLMN ?

In an isosceles trapezoid, the two nonparallel sides (the legs) are equal. Since LM is a leg with length √5, NK also has length √5. Add all four sides: 2√2 + √5 + √2 + √5 = 3√2 + 2√5 units, which is choice D.

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