Question

In triangle abc, the length of side and is 10 inches and the length of side be is 17 inches . Which of the following could be the length of side ac

Answer 1

a^2=b^2+c^2.

a^2=10^2+17^2.

a^2=100+289.

a^2=389.

a=√389.

a=19.72~20cm.