Question

Find the length of AB.

Answer 1

Answer: La reponse est la C

Explanation:
`√(72)`

Answer 2

`√(72)`

Explanation:

This is a right triangle. 6cm represents the radius of the circle. The other length, CB, would be the same length because it's also the radius of the circle. Since it's a right triangle, we can use the Pythagorean Theorem.

a^2 + b^2 = c^2 where c is the hypotenuse (longest side, across from the 90 degree angle) of the triangle.

Call the missing length AB "c", the hypotenuse.

so
`6^(2) +6^(2) =c^(2)`

36 + 36 =
`C^(2)`

72 =
`c^(2)`

Take the square root of both sides

c =
`√(72)` = length of side AB