Question

For triangle ABC side a = 19, side b = 10,

Answer 1

so, the question is ... ?

Answer 2

Use Pythagorean theorem to find C
a^2+b^2=c^2

Answer 3

19^2 is 361 and 10^2 is 100 add the two together to get 461

Answer 4

Then take the square root of 461 to get approximately 21.471 or radical 461