Respuesta :
Answer: " 7√6 " .
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→ The answer is: " 7√6 units " .
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Step-by-step explanation:
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Method 1:
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This will be a "45-45-90" triangle;
which means that in:
(two sides for triangle will be the same).
which is consistent with the information give:
(the two side of the triangle are sides of a "square" ,
and ALL sides of a square have the "square length" ;
and one side with be 90 degrees (a right triangle);
and the other angles will be 45 degrees (which is 1/2 of 90 degrees because the will cut into "1/2" of each of the "two other 90 degree angles" when a diagonal is drawn to form the "hypotenuse".
So, for "45-45-90" triangles, the side lengths, are:
"x, x, x√2 " ; in which "x√2" represents the side length of the "hypotenuse" ; and the two "x" values represent the equal values for the other 2 (two) side lengths.,
We are asked to find the "diagonal" of the square; in which: "x = 7√3" ;
That is, we are ask to find the hypotenuse: "x√3" ;
Note: We are given: " x = 7√3 " ;
So: " x√3 " = " 7 *√3 *√2 = 7 *√6 = " 7√6 ".
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The answer is: " 7√6 units " .
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Method 2:
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Use the Pythagorean theorem (for right triangles):
" a² + b² = c² " ;
in which: "c" represents the "side length" of the "hypotenuse" ;
or: the "diagonal" of the "square" ; for which we shall solve.
"a" and "b" represent the other sides of the right triangle.
In this case, "a" and "b" are equal;
since "a" & "b" are the side lengths of a square.
We are given: a = b = " 7√3 " .
We are to find "c" .
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" a² + b² = c² " ;
↔ " c² = a² + b² " ;
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→ c² = (7√3)² + (7√3)² ;
→ c² = (7²) * (√3)² + (7²) (*√3)² ;
→ c² = ( 49*3) + (49*3) ;
→ c² = (147) + (147) ;
→ c² = 294 ;
Take the "positive" square root of each side of the equation;
to solve for "c" ;
→ ⁺ √(c²) = ⁺ √294 ;
→ c = ⁺ √294
⁺ √294 = ⁺ √3 ⁺ √98 ;
→ √98 = ⁺ √49⁺ √2 ;
⁺ √294 = 7√3√2 = 7√6 .
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c = 7√6
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The answer is: " 7√6 units " .
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The values obtained by using "both" methods/ match!
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Hope this helps!
Best wishes in your academic pursuits
— and within the "Brainly" community!
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