Apply the Pythagorean theorem to find the unknown side length in the given triangle round your answer to the nearest ten one side is 15 the other side is three
To apply the Pythagorean theorem, we need to have a right triangle with two sides given. We can use the Pythagorean theorem to find the length of the hypotenuse, which is the unknown side.
In this case, we have one side of length 15 and the other side of length 3. To find the length of the unknown side, we can use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides.
Let's denote the unknown side as "x". According to the Pythagorean theorem, we have:
x² = 15² + 3²
x² = 225 + 9
x² = 234
To find the value of x, we take the square root of both sides:
x ≈ √234
x ≈ 15.297
Rounding this to the nearest ten gives:
x ≈ 20
So, the unknown side length is approximately 20 when rounded to the nearest ten.