Mathematics, 14.12.2020 08:30, javier04052000

True Or False Questions 1. All Isoceles Triangles have at least two acute angles

2. If the perimeter of an equilateral triangle is P, then the length of each of the sides is P/3.

3. All isosceles triangles are equilateral triangles.

4. If you know the length of one of the legs of an isosceles triangle, you can determine it’s perimeter

5. The exterior angle of an equilateral triangle is obtuse

Answers: 3

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answered: barboursj

The true and false statements need to be identified.

1. true

2. true

3. false

4. false

5. true

In an isosceles triangle two angles are equal.

Let the equal angle be and the other angle be

The sum of angles is $180^{\circ}$

$x+x+y=180\\\Rightarrow y=180-2x$

Now the value of cannot be $90^{\circ}$ or greater because

$y=180-2\times 90=0$

has to be less than $90^{\circ}$ .

The two equal angles must always be acute.

So, the statement is true.

If the side of an equilateral triangle is $\dfrac{P}{3}$

Perimeter will be

$\dfrac{P}{3}+\dfrac{P}{3}+\dfrac{P}{3}=P$

The statement is true.

An isosceles triangle that has the legs equal and also the base equal is called an equilateral triangle.

In an isosceles triangle the base may not be equal to the other two sides.

The statement is false.

Let $x=1\ \text{unit}$ be the length of the equal sides and the length of the other side

Permiter is

$P=x+x+y\\\Rightarrow P=2x+y\\\Rightarrow P=2\times 1+y=2+y$

Since, the other side is not know the perimeter cannot be found.

The statement is false.

In an equilateral triangle all angles are $60^{\circ}$

Exterior angle is found by subtracting the interior angle from $180^{\circ}$

So, for an equilateral triangle the exterior angles will always be $180-60=120^{\circ}$

The angles is greater than $90^{\circ}$ always.

The statement is true.

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answered: 109077

Step-by-step explanation:

TRUE

All isosceles triangles have at least 2 acute angles due to 2 sides are equal.

The exterior angle of an equilateral triangle is obtuse.

If the perimeter of an equilateral triangle is P, then the length of each of the sides is P/3.

FALSE

All isosceles triangles are equilateral triangles.

If you know the length of one of the legs of an isosceles triangle, you can determine it’s the perimeter

answered: Guest

Where are the

answered: Guest

"it's not the heat, it's the humidity". that's a partly valid phrase you may have heard in the summer, but it's actually both. the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. this has important considerations for the human body's comfort. when the body gets too hot, it begins to perspire or sweat to cool itself off. if the perspiration is not able to evaporate, the body cannot regulate its temperature. evaporation is a cooling process. when perspiration is evaporated off the body, it effectively reduces the body's temperature. when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases. in other words, the human body feels warmer in humid conditions. the opposite is true when the relative humidity decreases because the rate of perspiration increases. the body actually feels cooler in arid conditions. there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

75% of the temperatures are below what value? how do you know? 75% of the temperatures are above w

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True Or False Questions 1. All Isoceles Triangles have at least two acute angles

2. If...