Question

length of a rectangle is 15 CM and area is 150 CM find its perimeter and area

Answer 1

first of all let rhe breadth
let breadth=x
then length =x+5
and perimeter =150
=2(l+b)

150= 2(l+b)
150=2(x+x+15)
60=2x
x=60/2
x=30
therefore breadth =30cm
so length=30+15=45cm
perimeter of rectangle =2(45+30)
2×75=
150cm
area of rectangle = l×b
45×30=
1350 cm2

Answer 2

Area=l×b
150=15×b
150/15=b
10=b
b=10
Perimeter=2(l+b)
=2(15+10)
=2(25)
=50