Question

2. Adjacent sides of a rectangle are 7 cm and 24 cm. Find the length of its diagonal.
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Answer 1

Refer to the attachment for the diagram !

Given:-

• AD = 7cm.
• AB = 24cm.

To find:-

• Diagonal or DB.

Formula to be used:-

$\huge \fbox \blue{H²=P²+B²}$

This is called Pythagoras theorem.

Solution:-

$\implies$ DB² = AD²+AB²

$\implies$ DB² = 7² + 24²

$\implies$ DB² = 49+576

$\implies$ DB² = 625

$\implies$ DB = √625

$\implies$ DB = 25cm.

Hence, the value of diagonal is 25cm.