Question

in triangle abc,m 12 years ago

Answer 1

Triangle ABC is an isosceles right triangle.
12² = ac² + bc²
ac² + bc² = 144
ac² = 72
ac = sqrt(72)
ac = 6 * sqrt(2)
(That's not one of the answers - so this needs more work).

Answer 2

ac² + bc² = 144
ac² = 144- bc²
ac is side b
bc = side a

You posted another graphic which shows the choices are different than what you posted.

The answer is 6 * sqrt(2)

Answer 3

ok thanks