Question

ABC is a right triangle. If AC = 12 and BC = 13, find AB.

Answer 1

Since BC is the hypotenuse...

α = 12
c = 13

Hence..

13² = 12² + ß²
ß = √(13² - 12²)
= √(169 - 144)
= √25
= 5

Hence, AB = 5

I hope this helps!

Answer 2

Explanation:

Alright, lets get started.

There is a right triangle given, please refer the diagram I have attached.

Using Pythagorean theorem,

`AC^2+AB^2=BC^2`

Plugging the value of sides in theorem

`12^2 + AB^2 = 13^2`

`144+AB^2=169`

`AB^2 = 169-144`

`AB^2 = 25`

Taking square root on both sides

`AB = 5` .................. Answer

Hpe it will help :)