Question

Find the value of x in the given triangle ABC in which ∠B = 90°.

Answer 1

$\large\underline{\sf{Solution-}}$

In this case, we have to use Pythagoras Theorem,

We know, (Hypotenuse)² = (Perpendicular)² + (Base)²

=> H² = (12cm)² + (5cm)²

=> H² = 144cm² + 25cm²

=> H² = 169cm²

So, H = √(169cm²) = 13cm

Hence, AC = 13cm

Answer 2

Answer:

x = 13cm

Step-by-step explanation:

We can use the Pythagoras Theorem for this

Given,

∠B = 90°

Perpendicular = 12cm

Base = 5cm

Hypotenuse = ?

Perpendicular²+Base² = Hypotenuse²

                  12² + 5²      = Hypotenuse²

                  144 + 25     = Hypotenuse²

                          169     = Hypotenuse²

               Hypotenuse = √169 = 13cm

So the value of x equals 13cm

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