15

?
3
Apply the Pythagorean Theorem to find the unknown side length in the given triangle. Round your answer to the nearest tenth.
(1 point)

○ 234
○ 15.3
○ 216
O 14.7

1 answer

To find the unknown side length in the given triangle, we can use the Pythagorean Theorem which states that for 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 assume the unknown side length is x. The other two side lengths are 15 and 3.

Using the Pythagorean Theorem:
x^2 = 15^2 + 3^2
x^2 = 225 + 9
x^2 = 234
x ≈ √234
x ≈ 15.3 (rounded to the nearest tenth)

Therefore, the unknown side length in the triangle is approximately 15.3.

So, the correct answer is:
○ 15.3