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Kobotan [32]
3 years ago
8

Isosceles triangle ABC contains angle bisectors BF. AD and CE that intersect at X

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
3 0

Answer:

the answer is 136°........

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Round 14,445 to the nearest hundred
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A long paper strip with a width of 5 cm is folded, as shown in the picture. Find the smallest possible area of the gray triangle
Stolb23 [73]

By using some logic and the formula of the triangle's area, we will find that the smallest possible area is 12.5 cm²

How to start thinking about the problem.

First of all, for the configuration of this paper strip, we can see that the base of the triangle will <u>always be equal of the width of the paper</u>. Thus, the smallest area will be only dependent of the height of the triangle.

Now, we need to analyze the picture to figure out how we can get the smallest height possible for that triangle.

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Doing this, we shall see that the smallest height possible is actually when the height equals the width itself, as it's shown in the attached image.

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Thus, to calculate the smallest area, we just have to use the formula of the area of the triangle, which is   \frac{b\times h}{2}<em>, where </em><u><em>b is the base</em></u><em> and </em><u><em>h is the height</em></u><em>.</em>

As we previously found, for this question, the

<em>base = height = width of the paper = 5cm</em>

Now, we just have to calculate it with the formula

Area = \frac{base \times height}{2} \\\\&#10;\\&#10;Area = \frac{5 \times 5}{2} \\&#10;\\&#10;Area = \frac{25}{2}\\&#10; \\&#10;Area = 12.5 cm^{2}

learn more about the area of the triangle here: brainly.com/question/15442893

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2 years ago
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▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

let's evaluate :

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3 years ago
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F (x) = -x + 7 identifiy 0​
jekas [21]

Answer:

7

Step-by-step explanation:

f (x) = -x + 7 \\  \\ plug \: f (x) = 0 \\  \\ 0 =  - x + 7 \\  \\ x = 7 \\  \\ zero \: is \: 7

7 0
2 years ago
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