Question

ABCD is a rectangle. If AB = 5 cm and BC = 12 cm, find the diagonal BD.​

Answer 1

Given :

• AB = 5 cm
• BC = 12 cm

To find :

• the diagonal BD

Solution :

⇒ Let's find the Diagonal BD by using the "Pythogores Theorem".

→ The Pythogoras Theorem = √(AB)² + (BC)²

(BD)² = √(AB)² + (BC)²

(BD)² = √(5)² + (12)²

(BD)² = √25 + 144

(BD)² = √169

(BD)² = √13

= 13 cm

• Therefore, the Diagonal BD of ABCD is 13 cm.

Formula used~

• Pythogores Theorem = √(a)² + (b)²