Question

11. ∆ ABC is right-angled at C. If AC = 5 cm and BC = 12 cm find the length of AB.

Answer 1

Answer:

Here,

In right angled ∆ ABC, right angled at C,

AB = ?, AC = 5cm , BC = 12cm

By Pythagoras theorem,

$ab {}^{2} = ac {}^{2} + bc {}^{2}$

$ab { }^{2} = {5}^{2} + {12}^{2}$

${ab}^{2} = 25 + 144$

$ab {}^{2} = 169$

$ab {}^{2} = {(13)}^{2}$

Cancelling squares

$ab = 13$

Therefore, AB = 13cm.

Step-by-step explanation:

______________________

Here is your answer dear, hope it will helps you..

Have a sweet day..