Question

Ahmed wants to make a triangle. He has rods that measure 9 inches and 15 inches. The rods cannot be cut. Which is the length of a rod he could use to complete the triangle?

what is the answer?

Answer 1

12 because c^2=a^2+b^2
C15^2=225
A9^2=81
225-81=144
B12^2=144
it’s a right triangle