Question

Which are the lengths of the sides of right triangle RST?

Answer 1

Answer: C

Explanation:

`a^(2)` +
`b^(2)` =
`c^(2)`

121 + 324 = 455

Therefore,

`√(121)` +
`√(324)` =
`√(455)`

11, 18,
`√(455)` which is also 21.33