Question

A triangle ABC is right-angled at C. IfACs 12 cmand BC=5 cm, then find the length of AB.

Answer 1

Step-by-step explanation:

In right angle triangle ABC,

angle at C , AC=12cm, BC=5cm

AB^2=AC^2+BC^2

AB^2 =12^2+5^2

AB^2 =144+25

AB^2 = 169

AB=√169

AB=13

Answer 2

Answer:

13 cm is the length of AC.

Step-by-step explanation:

We use Pythagorean theorem in this question ,

Given ,

AC = 12 cm

BC = 5 cm

AB = ?

Now ,

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

( AB )^2 = ( 12 )^2 + ( 5 )^2

( AB )^2 = 144 + 25

( AB )^2 = 169

AB = √169

AB = 13 cm

13 cm is answer.

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