Question

A rectangle has a length of 12 feet and a perimeter of 40 feet

A-8 feet
B-12 feet
C-16 feet
D-28 feet

Answer 1

x= 8 feet (answer : A)

Explanation:

hello :

the perimeter is : P= 2(x+y) y : the length x : the width

P=40 and y = 12 calculate : x

2(x+12) =40

divid by 2 : x+12 =20

x=20-12

x= 8 feet