Get detailed and reliable answers to your questions with IDNLearn.com. Our platform is designed to provide quick and accurate answers to any questions you may have.

Find the value of x. Leave your answer in simplest radical form.


Find The Value Of X Leave Your Answer In Simplest Radical Form class=

Sagot :

Answer:

First you need to find at least two dimensions of the triangle containing a side length of x. The triangle of the top can be used for that. The hypothenuse for the 7,3 triangle is [tex]\sqrt{58}[/tex].

Now we can use the other triangle with sides of x,[tex]\sqrt{58}[/tex], and a hypothenuse of 9 to find x.

x^2 + [tex]\sqrt{58}^2[/tex] = 9^2

simplify

x^2 + 58 = 81

subtract 58 from both sides

x^2 = 23

x = [tex]\sqrt{23\\}[/tex]

and since this radical cannot be simplified further that is your answer.

Step-by-step explanation:

Step-by-step explanation:

Pythagoras.

c² = a² + b²

c being the Hypotenuse (the side opposite of the right angle).

so, the length of the rectangle is the Hypotenuse of the right-angled triangle on the top :

length² = 7² + 3² = 49 + 9 = 58

length = sqrt(58)

the diagonal of the rectangle is again the Hypotenuse of the right-angled triangle of length (sqrt(58)), width (x) and diagonal (9) of the rectangle.

so, we have

9² = sqrt(58)² + x² = 58 + x²

81 = 58 + x²

23 = x²

x = sqrt(23)