Question

Perimeter = 50 cm, l =5cm, b = ?​

Answer 1

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Answer 2

$\huge \bold \color{skyblue}answer$

Given

• Perimeter = 50cm
• Length = 5cm

To find

• Breath

Formula used

• Perimeter = 2×(l+b)

Let b = x and l = x+5

Calculation

• p = 2×(x+x+5)
• 50 = 2×(2x+5)
• 50÷2 = 2x+5
• 25 = 2x+5
• 2x 25-5
• 2x = 20

Therefor, x = 20÷2 = 10

b = x = 10

l = x+5 = 10+5 = 15