Question

the length of a rectangular hall is 3 metres more than double of its breath if its perimetre is 66 metres what is its length?

Answer 1

HEY DEAR . ✌

___________________________



Let breadth of. rectangle be x
length =3+2x
perimeter=66
then 2(L+B)=66
2(3+2x+x)=66
2(3+3x)=66
6+6x=66
x=10.
then length equals to 3+20=23metre


HOPE , IT HELPS .
FOLLOW ME . ✌

Answer 2

breadth =b=b m
length = l = 3m+2b
perimeter = 66m
2(length+breadth) = 66
2(3+2b+b) = 66
2(3+3b) = 66
6+6b= 66
6b = 66-6
6b = 60
b =60/6
b =10
b = 10 m

length = 3+2breadth
length = 3+2×10
length = 3+ 20
length = 23m