Question

find perimeter of an rectangle which has length 10cm breadth 4cm​

Answer 1

Perimeter is 28 centimetres.

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Answer 2

$\huge \star \underline \green{answer}$

Perimeter of traingle = 2(l+b)h

Where length =10 cm

breadth = 4cm

Perimeter =2(l+b)h

=2(10+4)h

=2(14)h

= 28h

check height in your question and just multiply it by 28