Question

The length of a rectangle is twice the breadth . The perimeter is 228 m . The dimension of rectangle is _________ ?
A)length = 76 m , breadth = 152 m
B)length = 152 m , breadth = 76 m
C)length = 70 m , breadth = 140 m
D)length = 75 m , breadth = 150 m

Answer 1

Answer:

)length = 75 m , breadth = 150 m

Answer 2

Answer:

(B) length = 152m , breadth = 76m

Step-by-step explanation:

Let the length be = (L)

Let the breadth be = (B)

According to problem,

=> L = 2B

Perimeter = 228m = 2(L+B)

=> 228 = 2(2B+B) {L=2B, from above}

=> 228 = 6B

=> 228/6 = B = 36

=> B = 36 , L = 2B = 2 X 36 = 76

total breadth(both breadth of rectangle) =>

=>2 X B = 2x36 = 76m------------(1)

similarly, total length = 2xL = 2x76 = 156m-----------(2)