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A ladder leans against a house making a 30 degree angle with the ground. If the ladder touches the house at a point 10 feet high, how long is the ladder?

Respuesta :

ChoiSungHyun

Answer:

20ft.

Step-by-step explanation:

Sine = Opposite / Hypothenuse

Opposite = Height = 10ft

Hypothenuse = Length of ladder

Therefore, sin30° = 10ft / Length = 1/2

Length = 20ft

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