Question

find the perimeter and the area of a rectangle,whose lenght is 70m and breath 40m

Answer 1

perimeter= 2(l+b)

=2( 70+40)
= 2* 110
= 220 m


Area = lb
= 70 * 40
= 2800m^2

Answer 2

Hi !
Length(L) = 70 m
Breadth(B)= 40 m
Perimeter ( P ) = 2 L + 2 B = 2 ( L + B)
P = 2 ( 70 + 40 )
⇒ P = 2 ( 110 ) 
⇒ P = 220 m
Area ( A ) =  L × B
⇒ A = 70 × 40
⇒ A = 2800 m²
Hence the  Area is 2800 m² and the Perimeter is 220 m .
I hope the answer is correct 
Thank you!