# if the height of a rectangle with area 143sq cm and base length 11cm. what is the perimeter?

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- MercyLv 77 years agoFavorite Answer
If the height is 11 cm then 2 sides are 11 cm

Let x represent the width.

2(11) + 2(x) = 143

22 +2x = 143

2x = 143 -22

2x = 121

x = 60.5 ( width)

143 = 11 +11 + 60.5 + 60.5 = 143 .. so question is correct.

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- DouglasLv 77 years ago
143 is the area.

A = l x w

Length is given, so

143 = 11 x w / divide both sides by 11

w = 13

Perimeter = 2 ( l + w)

= = 2 ( 11 + 13)

P = 48 cm

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