Geometry

how do you find this out? the exterior angles is what is confusing me and also considering how there is only two

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

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Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet