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lina2011 [118]
3 years ago
14

Show that the triangle below is not a right-angled triangle.

Mathematics
1 answer:
Paha777 [63]3 years ago
7 0

Step-by-step explanation:

A right triangle is a triangle in which one of the angles is a 90∘ angle.

(5x - 8)  + (2x - 5)  + (2x  + 3) = 180 \\ 9x - 10 = 180 \\ 9x = 190 \\ x =  \frac{190}{9}  \\ x = 21.11

(5x - 8) =97.56  \\ (2x - 5)  =37.22  \\ (2x + 3) =45.22  \\

Since None of the angels is 90° , so the triangle is not a right triangle.

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Answer:

B

Step-by-step explanation:

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3 years ago
Rewrite 1/3 book - 5/6 hour as a unit rate.
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Step-by-step explanation:

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2 years ago
AB has a vértices at (-5,1) and (-3,7). After a transformation, the image had endpoints at (3,-1) and (5,5). Describe the transf
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That looks like a translation; let's check.  We have

A(-5,1), B(-3,7), A'(3,-1), B'(5,5)

If it's a translation by T(x,y) we'd have

A' = A + T

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so 

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and also 

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They're the same so we've verified this transformation is a translation by (8,-2), eight right, two down.

 



5 0
2 years ago
Read 2 more answers
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Answer:

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