Asked by Anonymous

On an aerial photograph of a triangular piece of land the lengths of the three sides are 4cm, 5cm and 7cm. If the shortest side of the actual piece of land is 360 meters, find the lengths of the other sides
Answered by Steve
scale is 4cm:360m

so, 5cm = (5/4)4cm : (5/4)360m = 450m
and 7cm = (7/4)4cm : (7/4)360m = 630m
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