Is triangle abc a right triangle? why or why not?
a. no, triangle abc is not a right triangle, because ac would have to be 2 sq rt of 10
b. no, triangle abc is not a right triangle, because ac would have to be 5 sq rt of 3
c. no, triangle abc is not a right triangle, because ac would have to be 40.
d. yes, triangle abc is a right triangle by the pythagorean theorem.