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valentinak56 [21]
3 years ago
10

If you place a 39-foot ladder against the top of a 23-foot building, how many feet will

Mathematics
2 answers:
Alborosie3 years ago
4 0

Answer:

31.5 ft

Step-by-step explanation:

Use the Pythagorean Theorem

a² + b² = c²

Plug in the knowns

a² + 23² = 39²

Subtract 23² from both sides

a² = 39² - 23²

a² = 1521 - 529

a² = 992

Take the square root of both sides

a = 31.496031496

Rounded

a = 31.5 ft

Hoochie [10]3 years ago
3 0

Answer:

22.2

Step-by-step explanation:

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