Answer: 12.5cm
Explanation:
From the question, we are informed that a scale drawing of a lake has a scale of 1 cm to 80 m. This can be represented as a fraction of 1/80.
Since the actual width of the lake is 1,000 m, the width of the lake on the scale drawing will be:
= 1/80 × 1000
= 12.5cm
The width of the lake on the scale drawing is 12.5cm.