Question

Please answer the question shown in the picture..its urgent
thanks in advance

Answer 1

Answer:

Perimeter of rectangle=130cm

⇒2(length+breadth)=130cm

⇒2(length+30)=130

⇒ length+30=

2

130

⇒ length+30=65

⇒ length=65−30=35cm

Now area of rectangle=length×breadth=35×30=1050cm

2

Thus, the area of rectangle is 1050cm

2

Answer 2

Answer:

• Breadth of the rectangle = 25 cm
• Area of the rectangle = 100 cm²

Step-by-step explanation:

Formulae Used :-

$\boxed{ \begin {array} {cc} \sf 1. \:Perimeter = 2(length + breadth) \\ \\ \sf2. \: Area = length \times breadth \: \: \: \: \: \: \: \: \: \: \: \: \: \: \end{array}}$

Solution :-

Let the breadth of the rectangle be "b". Therefore, according to the given information :-

$\sf \dashrightarrow2(4 0 + b) = 130 \: cm \\ \\ \\ \sf \dashrightarrow80 + 2b = 130 \: cm \: \: \: \\ \\ \\\sf \dashrightarrow2b = 130 - 80 \: \: \: \: \: \: \: \: \: \: \\ \\ \\ \sf \dashrightarrow b = \frac{50}{2} = 25 \: \: \: \: \: \: \: \: \: \: \: \:$

Therefore, the breadth of the rectangle is 25 cm.

Now, calculating the area, we have :-

$\\ \sf \dashrightarrow Area =40 \times 25 \\ \\ \\ \sf \dashrightarrow Area = 100 \: {cm}^{2}$

Therefore, the area of the rectangle is 100 cm ².

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