Question

pls telll pls pls pls

Answer 1

18

Step-by-step explanation:

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Answer 2

Answer:

By Pythagoras theorem

hypotenuse ²=base ²+height ²

ATQ

DB²-DC²=BC²

5²-4²=BC²

25-16=BC²

9=BC²

3=BC

Therefore perimeter of the given rectangle

=2(3+4)

=2×7

=14cm. Ans.

hope it helps....