Question

find the area of rectangular field whose length is 80 m and perimeter is 240 m​

Answer 1

Answer:

2640m^2

Step-by-step explanation:

l=240m

b=110dm=11m

so perimeter=2(240+11)=502m

area=240×11=2640m^2

Answer 2

ANSWER

AREA OF RECTANGULAR FIELD$\sf{ → 3200 m^2 }$

TO FIND

• AREA OF RECTANGULAR FIELD

GIVEN

• $\sf{Length \:of \:field => 80\: m}$
• $\sf{Perimeter\: of\: field => 240\: m }$

SOLUTION

• LET'S FIND BREADTH FIRST

$\sf{Perimeter=2(length+breadth)}$

$\sf{240=2(80+Breadth)}$

$\sf{240=160+2 Breadth }$

$\sf{240-160= 2 Breadth }$

$\sf{{\frac{80}{2}= Breadth}}$

(40= Breadth)

Now,

$\sf{AREA \:OF\: FIELD => Length × Breadth}$

$\sf{ => 80×40 }$

$\sf{ => 3200 m^2 }$