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A 30-foot ladder is set on grade with the base 8 feet from a building. The ladder reaches the edge of a roof without extending beyond it. What is the vertical measurement of the roof from the ground?

a) 24 feet
b) 22 feet
c) 26 feet
d) 28 feet

User Shernett
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1 Answer

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Final answer:

The vertical measurement of the roof from the ground is approximately 28 feet. (option d)

Step-by-step explanation:

To find the vertical measurement of the roof from the ground, we can use the Pythagorean theorem.

Let the vertical measurement of the roof be x.

Using the Pythagorean theorem, we have: (8)^2 + x^2 = (30)^2

Simplifying the equation, we get: 64 + x^2 = 900

Subtracting 64 from both sides, we get: x^2 = 836

Taking the square root of both sides, we get: x = √836

Rounding to the nearest whole number, we have: x ≈ 28

Taking into account the ladder's length, base distance, and the Pythagorean theorem, the vertical measurement of the roof from the ground is determined to be 28.91 feet. Therefore, option d) 28 feet is the accurate answer, derived through mathematical calculation and considering the physical setup described in the problem.

Therefore, the vertical measurement of the roof from the ground is approximately 28 feet

User Neridaj
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