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Each leg of a 45-45-90 triangle has a length of 6 units. What is the length of its hypotenuse?A.6 unitsB.12 unitsC.3 unitsD.6 unitsSUBMITarrow_backPREVIOUS

Question

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Solution

1. Break Down the Problem

We need to calculate the length of the hypotenuse of a 45-45-90 triangle given that each leg is 6 units long. A 45-45-90 triangle is an isosceles right triangle, where the legs are of equal length.

2. Relevant Concepts

The relationship between the legs and the hypotenuse in a 45-45-90 triangle can be described with the following formula: Hypotenuse=Leg×2 \text{Hypotenuse} = \text{Leg} \times \sqrt{2}

3. Analysis and Detail

Given that each leg a a is 6 units: Hypotenuse=a×2=6×2 \text{Hypotenuse} = a \times \sqrt{2} = 6 \times \sqrt{2} Calculating 6×2 6 \times \sqrt{2} , we know that 21.414 \sqrt{2} \approx 1.414 : 6×26×1.4148.484 6 \times \sqrt{2} \approx 6 \times 1.414 \approx 8.484

4. Verify and Summarize

Thus, the exact length of the hypotenuse is 62 6\sqrt{2} . To summarize, we have calculated that the hypotenuse of this 45-45-90 triangle, given each leg is 6 units, is approximately 8.484 units.

Final Answer

The length of the hypotenuse is 62 6\sqrt{2} units, approximately 8.484 units. However, none of the provided options (A, B, C, D) match the actual hypotenuse length.

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