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Free_Kalibri [48]
3 years ago
11

Draw a shape with 3 straight sides and 3 vertices

Mathematics
2 answers:
max2010maxim [7]3 years ago
7 0
The attached file shows a shape with 3 straight sides, and 3 vertices. This shape is also known as a triangle.

Luden [163]3 years ago
4 0
I can't draw it here but its a triangle 
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Tell whether the triangle with the given side lengths is a right triangle. Y/N question
melomori [17]

Answer:

Yes it is a right triangle.

Step-by-step explanation:

Because the Pythagorean Theorem states that a^{2} +b^{2} =c^{2}

85^{2}=7225\\84^{2}=7056\\13^{2}=169\\7056+169=7225

8 0
3 years ago
Can someone pls help me I'm stuck o these two questions
jeka57 [31]

Problem 1

<h3>Answers:</h3><h3>arc AB = 122 degrees</h3><h3>angle ADB = 61 degrees</h3>

--------------------

Explanation:

Arc BC is 58 degrees. The arc AB combines with it to form semicircle ABC, which is basically arc ABC with measure 180

This must mean arc AB is 180-58 = 122 degrees

When in doubt, chances are the number 180 might be involved (in some way) when it comes to geometry problems. Of course, this isn't always a guarantee. The number does show up a lot though.

Once we determine what arc AB is equal to, we cut it in half to get the inscribed angle ADB. Refer to the inscribed angle theorem. Notice how angle ADB subtends the arc AB.

==========================================================

Problem 2

<h3>Answer:  9</h3>

--------------------

Explanation:

x = length of AE

Since AC = 13, this makes EC = 13-x

We'll use the intersecting chords theorem to find x.

(AE)*(EC) = (BE)*(DE)

x*(13-x) = 6*6

13x-x^2 = 36

-x^2 + 13x - 36 = 0

x^2 - 13x + 36 = 0

(x-9)(x-4) = 0

x-9 = 0 or x-4 = 0

x = 9 or x = 4

This means AE could be 9 units long or 4 units long.

Usually the diagram isn't drawn to scale so we don't really use it all too much (other than initial set up). However, if the diagram was drawn to scale, then notice that AE is over the halfway point of AC. This means we would be able to rule out x = 4 since 4 is not over the halfway point of 13. I have a feeling this is what your teacher might be going for.

In short, only AE = 9 is possible.

4 0
2 years ago
The radius of a circle is 4 feet. What is the circle's circumference?<br> r=4 ft<br> Use 3.14 for n.
Alexxandr [17]

Answer:

C = 25.12 feet

Step-by-step explanation:

C = 2 x 3.14 x 4

C = 25.12 feet

8 0
3 years ago
In a triangle the ratio of angles is 2:3:4 find the angles​
Dmitry [639]

Answer:

40,60,80

Step-by-step explanation:

2x+3x×4x=180

9x=180

x=20

2x=40

3x=60

4x=80

6 0
3 years ago
Seventeen people have been exposed to a particular disease. Each one independently has a 40% chance of contracting the disease.
docker41 [41]

Answer: the probability that the hospital's capacity will be exceeded = 0.035

Step-by-step explanation:

Shown in the attachment.

7 0
3 years ago
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