Question

find the perimeter of a rectangle whole length is 5.7 cm and breath is 3.9 cm
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Answer 1

Perimeter=2(l+b)

= 2(5.7+3.9)

= 2×9.6

= 19.2

Hence, the perimeter is 19.2 cm.

Answer 2

Perimeter of rectangle= 2(l ×b)

=2(5.7× 3.9)

=19.2 cm

Hope it was helpful