There is a building with window at a height of 12 m. You want to use a ladder to go up to the window, and you decide to keep the ladder 5 m away from the building to have a good slant. How long should the ladder be?

12 m

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25 m

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169 m

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13 m

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Solution

The correct option is D
13 m

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There is a building with window at a height of 12 m. You want to use a ladder to go up to the window, and you decide to keep the ladder 5 m away from the building to have a good slant. How long should the ladder be?

The correct option is D 13 m

The correct option is D
13 m