Question

Li made a scale drawing of a room.The scale used was 5cm=1m.The scale drawing is the preimage and the room is the dilated image. What is the scale in terms of cm to centimeters? What is the algebraic rule to describe the dilation from the scale drawing of the room? The scale drawing measures 15 centimeters by 20 centimeters.what are the dimensions of the room?

Answer 1

by scale 5cm= 1 m
so 1cm = 0.20m

15 x 0.20= 3m
20 x 0.20=4m

dimensions are approx 3m x 4m