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Answer:

○ a. [tex]75\:ft.[/tex]

Step-by-step explanation:

This is what is called the Mid-segment Theorem, which states that the relation of a triangle's midpunkt is parallel to the triangle's third side, and the mid-segment length is half the third side length, so you would take half of 150 to arrive at your answer:

[tex]75 = \frac{150}{2}[/tex]

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This question is based on the concept of mid - segment theorem. Therefore, the correct option is A, 75 feet is the height of the tree.

Given:

The height of the building is 150 feet.

We need to determined the height of tree.

According to the question,

By using mid - segment theorem,

This states that, the relation of a triangle's mid - points is parallel to the triangle's third side, and the mid-segment length is half the third side length.

Therefore, the by this theorem, height of the tree is half of the height of building.

That is, [tex]\bold{\dfrac{150}{2} = 75 feet}[/tex]

Hence, the height of the tree is 75 feets.

For more details, prefer thus link:

https://brainly.com/question/19509993