Question

If the Perimeter and length of a rectangular hall are 84 metre and 30metre respectively then find the area of the hallIf the perimeter and length

Answer 1

Answer:

2(l+b)=84m

2(30+b)=84m

60 +2b =84m

2b =24m

b = 12 m

l=30m( given )

area = l ×b

=30m × 12m

=360 Square m ANSWER

Answer 2

Step-by-step explanation:

Perimeter= 84m

length = 30m

therefore, breadth = {(84/2) - 30}m

=42-30m

= 12m

therefore, area= (30×12)m²

= 360m²