Question

∆ABC is right angled at C if AC =5 cm and BC=12 cm what is the length of AB​

Answer 1

Answer:

use pythagoras th.

AB=12cm

AC=5cm

Step-by-step explanation:

so (AB)2=(AC)2+(BC)2

(12)2=(5)2+(BC)2

144=25+(BC)2

(BC)2=144-25

BC=119

$\sqrt{?}119$

Answer 2

Answer:

Step-by-step explanation:

Correct answer. By hypertension AC sq+BCsq=AB sq 5 sq+12 sq=AB sq. 25+144=AB sq. AB=root169. AB=13