Answer:
12.4 ft
Explanation:
4² + h² = 13²
h² = 13² - 4² = 169 - 16 = 153
h = √153 ≈ 12.37 ft ≈ 12.4 ft
a² + b² = c²
16 + h² = 169
h² = 169 - 16
h² = 153
h = 12.369316
Answer: 12.4 ft
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