Question

Find the x in the triangle

Answer 1

20

Explanation:

Because this is a right triangle, you can use the Pythagorean Theorem, a^2 + b^2 = c^2. a and b are your legs and c is your hypotenuse, so you have 21^2 + b^2 = 29^2. This equals to 441 + b^2 = 841. subtract 441 from both sides and you are left with b^2 = 400. take the square root of both sides to get your answer b = 20, or x = 20.

Answer 2

x = 20

Explanation:

→You can use the Pythagorean Theorem to solve this:

`a^2 +b^2=c^2`

→The "a," and "b," are the legs, 21 and x, while the "c," is the hypotenuse, 29. In this case, we are trying to find the value of a leg:

`21^2+b^2=29^2`

`441+b^2=841`

→Subtract 441 from both sides:

`b^2=400`

→To get "b," by itself, you must take the square root of both sides, like so:

`√(b^2) =√(400)`

`b = 20`