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2 years ago

What the answer is! I'm so confused about the triangle part!

Mathematics

2 answers:

SashulF [63]2 years ago

6 0

The area of this is 46 meters square because the area of the rectangle is 40 meters square, and the area of the triangle is 6 meters square, so i just add all of it together to get 46 meters square. Hoped it help! Finally, the area of the triangle is 1/2 times base times height, so we already have base is 4m and height is 3m. As a result, 1/2 times 4 time 3 equal 6 meters square. Hoped it help!

zysi [14]2 years ago

4 0

What are we suppose to find

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The actual height of building is 1800 feet.

Step-by-step explanation:

Given,

Height of building in model = 3 inches

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1 inch = 600 feet

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Actual height of building = Height in model * Scale used

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Actual height of building = 1800 feet

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2 years ago

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2 years ago

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In triangle ABC segment DE is parallel to the side AC. (The endpoints of segment DE lie on the sides AB and BC respectively).

ivanzaharov [21]

Answer:

6 dm

Step-by-step explanation:

Triangle DBE is similar to triangle ABC, so their side lengths are proportional.

DE/AC = DB/AB

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So, we can fill in the proportion:

DE/(18 dm) = (5 dm)/(15 dm)

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2 years ago

Quadrilateral A’B’C’D’ is a dilation of quadrilateral ABCD about point P. Quadrilateral ABCD is shown. Side AB is labeled 5. Sid

Stolb23 [73]

Answer: The correct option is (A) reduction.

Step-by-step explanation: Given that the quadrilateral A'B'C'D' is a dilation of the quadrilateral ABCD.

As shown in the given figure, the lengths of the sides of quadrilateral ABCD are as follows:

AB = 5 units, BC = 4 units, CD = 10 units and DA = 6 units.

And, the lengths of the sides of quadrilateral A'B'C'D' are as follows:

$A'B'=1\dfrac{1}{4}=\dfrac{5}{4}~\textup{units},~~B'C'=1~\textup{units},~~C'D'=2\dfrac{1}{2}=\dfrac{5}{2}~\textup{units},\\\\D'A'=1\dfrac{1}{2}=\dfrac{3}{2}~\textup{units}.$

We know that the dilation will be an enlargement if the scale factor is greater than 1 and it will be a reduction if the scale factor is less than 1.

Now, the scale factor is given by

$S=\dfrac{\textup{length of a side of the dilated figure}}{\textup{length of the corresponding side of the original figure}}\\\\\\\Rightarrow S=\dfrac{A'B'}{AB}=\dfrac{\frac{5}{4}}{5}=\dfrac{5}{4\times5}=\dfrac{1}{4}$

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