Answer:
9.63
Explanation:
Since the ratio of the length of the horizontal leg to the length of the vertical length is 12:1, then the horizontal leg must be 12 × 0.8 m = 9.6 m.
We have a right triangle with legs of lengths 0.8 m and 9.6 m.
We can find the length of the hypotenuse by using the Pythagoras theorem.
a² + b² = c²
(0.8 m)² + (9.6 m)² = c²
c² = 92.8 m²
c = 9.63 m
Answer: 9.63