Question

perimeter of a rectangle is 390 cm and its leangth is 120 cm.Find its Area​

Answer 1

Answer:

Area=9000 cm²

Step-by-step explanation:

Length =120 cm

Perimeter =390

2(l+b)=390

l+b=195

120+b=195

b=195-120

b=75 cm

Area=l×b=75×120

=9000 cm²

Answer 2

Answer:

Step-by-step explanation:

Perimeter of rectangle = 2*(l+b)

So 390=2*(120+b)

390=240+2b

b=(390-240)/2=150/2=75 can

Area of rectangle = l×b

So area = 125 × 75 = 9000 cms