Question

in a figure AB=90°,AC=13cm,BC=5cm,CD=11cm, calculate the length of AD​

Answer 1

Answer:

Correct option is

A

12

△ ABC is a right-angled triangle.

By Pythagoras theorem,

AC

2

=BC

2

+AB

2

⇒13

2

=5

2

+AB

2

⇒AB

2

=−(5)

2

+13

2

⇒AB

2

=−25+169

⇒AB

2

=144

⇒AB=

144

⇒AB=12 cm.

Answer 2

Hello, Buddy!!

Refer The Attachment ⬆️

Length of AD

• $\longmapsto\;\red{\bold{20cm}}$

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Hope It Helps You ✌️