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lozanna [386]
3 years ago
11

A triangle has sides of lengths 13, 21, and 24. is it a right triangle? explain

Mathematics
1 answer:
mel-nik [20]3 years ago
8 0
<span>No, it doesn't. To find out if it's a right angled triangle, we use Pythagorean triple. It states that the square of the hypotenuse (the longest side) is equal to the sum of the squares of the opposite and adjacent sides. Obviously, the longest side, which is our hypotenuse is 24. So we want to find out whether the square of our hypotenuse is equal to the sum of the squares of the other two sides i. e 13 and 21. 24^ 2 = 576 ; 13^2 = 169 ; 21^2 = 441; So is 576 = 169 + 441. An emphatic No: hence the triangle isn't right angled since it doesn't satisfy pythagorean triple.. A^2 is not equal to B^2 + C^2 where a is the hypotenuse and b and c the opposite and adjacent sides.</span>
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Flauer [41]
I assume you're looking for the sum.

I would use the null property to eliminate 0
34+0+18+26
=34+18+26
then use commutativity to rearrange
=34+26 + 18
Add 34+26=60
=60+18
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3 years ago
Free points, what is 2 + 2
Marina CMI [18]

Answer:

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A train leaves at 14.54 and arrives at its destination at 15.47. If the train travelled 66 km, what was it's average speed in km
JulijaS [17]

Answer: average speed of the train = 4,483.0 km/h

Step-by-step explanation:

Speed = Distance / Time

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Time = 15.47  cancelling 15, we have 60 sec added to 47 sec

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=         14.   107    60 + 47

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<u>                     53secs</u>

53secs to hours becomes =

60 secs = 1 min

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therefore 53seconds =53/3600=0.0147222hours

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2 years ago
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Julli [10]

ANSWER

( -  \frac{3}{2} , - 1)

EXPLANATION

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(3,2)

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The rule for the dilation is :

(x,y)\to( - \frac{1}{2}  x, -  \frac{1}{2} y)

To find the coordinates of Y', we plug the coordinates of Y.

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Y(3,2)\to \: Y'( - \frac{3}{2}, - 1)

The first choice is correct.

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Neporo4naja [7]

Answer:

6.125

Step-by-step explanation:

Divide 24.50 by 4!

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