JK¯¯¯¯¯¯¯¯, KL¯¯¯¯¯¯¯¯, and LJ¯¯¯¯¯¯¯ are all tangent to O (not drawn to scale). JA = 12, AL =15 and CK = 16. Find the perimeter of △JKL (1 point) Responses 42 42 84 84 86 86 43

1 answer

To find the perimeter of triangle JKL, we need to find the lengths of JK, KL, and JL.

Since JK and KL are tangent to O, we know that JK = JL (tangents from a point to a circle are equal in length).

Therefore, JK = JL = x (let's call this length x).

Now, we can use the Pythagorean theorem to find the length of KL.

JK^2 + JL^2 = KL^2
x^2 + x^2 = 15^2
2x^2 = 225
x^2 = 112.5
x ≈ 10.61 (rounded to 2 decimal places)

Now we can find the perimeter of triangle JKL:

JK + KL + JL = x + 16 + x
= 2x + 16
= 2(10.61) + 16
= 21.22 + 16
= 37.22

So, the perimeter of triangle JKL is approximately 37.22.

Therefore, the closest response is 42.