Question

triangle ABC is right angled at C.if AC=5 cm and BC=12 cm. Find the length of AB. ​

Answer 1

AB2=AC2+BC2

⇒AB2=52+122

⇒AB2=25+144

⇒AB2=169

⇒AB=169−−−√

⇒AB=13 cm

∴ Length of AB is 13 cm.