116.61 metre
Explanation:
The triangle created by the diagonal is a right angled triangle so we use pythagoras theorem to find the length of diagonal.
h²= p² + b²
Here,
h = ?
p= 60
b= 100
h² = 60² + 100²
h² = 3600 + 10000
h² = 13600
h = 116.61
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