Question

Which equation represents the value of x?

Answer 1

Answer:

option 2nd is correct.

Step-by-step explanation:

We have been given a right angled triangle having right angle at B.

So, we can use pythagoras theorem which is:

$hypotenuse^2=side^2+side^2$   (1)

hypotenuse is the longest side.

which is 10 here,.

And x and y are other two sides

Substituting the values in formula  in (1) we get:

$10^2=x^2+y^2$

$100=x^2+y^2$

$\Rightarrow \sqrt{100-y^2}=x$

Therefore, option 2nd is correct.

Answer 2

Using the Pythagorean theorem you would find X by taking the square root of the base squared (Y^2) subtracted from the hypotenuse squared ( 10^2 = 100)

The equation would be x = √100-y^2

The second answer is the correct one.