Question

the perameter is rectangle is 240m,if the length is 85 m.find the area in arcs​

Answer 1

Answer:

2975

Step-by-step explanation:

Perimeter = 2*(L+B) = 240m

L = 85m

2*(85+B) = 240

B = 240/2 - 85 = 35m

Area = L*B = 35*85 = 2975m²

Answer 2

Solution :-

$\boxed{Perimeter \: of \:a \:retangle =2(l+b)}$

Here let 'x' be the breadth. So,

→Perimeter of this rectangle = 240m

→Length = 85m

→Breadth = x

   

Now, we got an equation to compute i.e,

$2(85+x) = 240m\\\implies170+2x=240\\\implies2x=240-170\\\implies2x=70\\\implies x=\frac{70}{2} \\\\\implies{x=35}$

∴ breadth of this rectangle = 35cm

 

 

$\boxed{Area \:of\: a \:rectangle = l*b}$

Area of this rectangle = 35 × 85

Area = 2975 cm

HOPE IT HELPS !!!