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Natali [406]
2 years ago
11

A triangle has sides with lengths of 2 centimeters, 4 centimeters, and 5 centimeters. Is it a right triangle?

Mathematics
2 answers:
Akimi4 [234]2 years ago
7 0

Answer:

  • No

Step-by-step explanation:

<u>Use Pythagorean to verify:</u>

  • 2² + 4² = 5²
  • 4 + 16 = 25
  • 20 = 25

As we see the equation is not true, so the answer is no

makvit [3.9K]2 years ago
3 0

Let's use Pythagorean theorem to verify

\\ \sf\longmapsto H^2=P^2+B^2

\\ \sf\longmapsto 5^2=4^2+2^2

\\ \sf\longmapsto 25=16+4

\\ \sf\longmapsto 25\neq 20

Not a right triangle

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Sonja [21]

ΔABC is a 45 - 45 - 90 triangle. The pattern of its sides is as follows:

Each leg = 1 unit (and both legs are that way, since the triangle is isosceles - so two sides are the same)

Hypotenuse = √2 units.

So if we know either leg, we multiply by √2 to get the hypotenuse. In reverse, we divide by √2 if we know the hypotenuse to get the measurement of a leg.

Our problem tells us that the hypotenuse AC is 10 units. We divide 10 by √2 to get the measurement of leg AB. Since it's a 45 -45 - 90 triangle, AB = BC.

AB = \frac{10}{\sqrt{2}}

= \frac{10\sqrt{2}}{\sqrt{2}\sqrt{2}} to rationalize the radical

= \frac{10\sqrt{2}}{2} = 5\sqrt{2}

Thus, each leg is 5\sqrt{2} [/tex].

6 0
2 years ago
Explain why multiplying a fraction by 5/6 results in a value that is less than the original fraction
Ivahew [28]

Answer:

Step-by-step explanation:

(5/6) itself is less than 1 (but greater than 0).  Thus, anything multiplied by (5/6) will result in a smaller-by-magnitude quantity.

For example, (5/6)(3/4) is LESS than 3/4 because 5/6 is greater than zero but less than 1.

5 0
3 years ago
You just received your final exam score from your teacher. At the top of the exam, it says you missed three questions and got 42
Leno4ka [110]

Answer:

below

Step-by-step explanation:

I would guess that they added 42 and 45 and then added 1 for their mistake. That might be a bit of stretch, but that is what I think

3 0
3 years ago
Read 2 more answers
Can someone please give me the answers to this? ... please ...
mariarad [96]

Answer:

d=√((x_2-x_1)²+(y_2-y_1)²)

Step-by-step explanation:

use your brain and fill in the variables

5 0
2 years ago
HELP EMERGENCY!!!!!! What is the equation of the line?<br> Y=3x-1<br> Y=-3x<br> Y=3x+1<br> Y=3x
ch4aika [34]
<h2>Answer:</h2>

By process of elimination, we can eliminate:

  • <em>A:</em> <em>y = 3x - 1</em>
  • <em>C: y = 3x + 1</em>
  • <em>B: y = -3x</em>

<em>A and C</em> don't work because the given line has it's y-intercept at the origin, therefore, no y-intercept is written. <em>B </em>is not it either because the line <em>does not</em> go <em>down</em> from <em>left to right</em>, therefore, the slope is <em>not</em> negative.

The answer is <em>D: y = 3x</em> because since the line goes <em>up</em> from <em>left to right</em>, the slope is positive, and the y-intercept is the origin, so the equation will have no b.

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