Question

help me please it is urgent
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Answer 1

$\Large{\underline{\underline{\bf{Solution :}}}}$

As, it is given that,

Length is 10 cm more than breadth.

So, A.T.Q

Let Breadth (B) of rectangle be x.

So, Length (L) = (x + 10)

We know the formula to find the perimeter of the rectangle

$\Large{\implies{\boxed{\boxed{\sf{Perimeter = 2(L + B)}}}}}$

_________________[Put Values]

$\sf{→ 240 = 2(x + x + 10)} \\ \\ \sf{→ \frac{\cancel{240}}{\cancel{2}} = (2x + 10)} \\ \\ \sf{→120 = 2x + 10} \\ \\ \sf{→2x = 120 - 10} \\\ \\ \sf{→2x = 110} \\ \\ \sf{→x = \frac{\cancel{110}}{\cancel{2}}} \\ \\ \sf{→ x = 55} \\ \\ \Large{\implies{\boxed{\boxed{\sf{x = 55 \: cm}}}}}$

$\sf{\therefore \: Breadth = x = 55 \: cm}$

Length = (x + 10) = (55 + 10) = 65 cm

So, Option B is correct.

Answer 2

Answer:

55

Step-by-step explanation:

perimeter of rectangal=2(l+b)

l=10cm

b=?

given perimeter =240cm

2(10cm+b) =240cm

10cm+b=240÷2cm

10cm+b=120cm

b=120cm-10cm

b =110cm

in the last we should divide 110cm ÷2 and answer is 55 .

if you got it say thank...