Question

In a right angle triangle ABC a b is equal to 90 degree if AC is 13 cm BC is 5 cm what will be the ab

Answer 1

Answer:

∴  AB = 12 cm

Step-by-step explanation:

Given,

In a right angle triangle ABC:

∠B = 90°

AC = 13 cm

BC = 5 cm

By using  Pythagorean triple:

    $AC^{2} = AB^{2} + BC^{2}$

⇒ $(13)^{2} = AB^{2} + (5)^{2}$

⇒ $AB^{2} = 169 - 25$

⇒ $AB^{2} = 144$

⇒ $AB = \sqrt{144}$

∴  AB = 12 cm