Debbie drew a scale drawing of a hotel. she used the scale 1 inch = 3 feet. if a room in the hotel is 4 inches in the drawing, how wide is the actual room?

The scale Debbie used was 1 inch = 3 feet. That means that every inch Debbie draws represents 3 feet.

Debbie drew a room that was 4 inches (wide, I'm assuming). That means you need to multiply 3 feet by 4 (for every inch that she drew):


The width of the room is 12 feet.

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.