Question

*Length of a rectangle is 5cm and breadth is 3 cm then find the ratio of its perimeter to it's area.*
1️⃣ 8:15
2️⃣ 16:15
3️⃣ 15:16
4️⃣ 15:8​

plz answer it

Answer 1

Answer:

• lenth =5cm
• breath =3cm
• so area =15 and perimeter =16
• so ratio between perimeter and area=16:15

thankyou

Answer 2

Given

• Length of the rectangle = 5 cm
• Breadth of the rectangle = 3 cm

To find

• Ratio of its perimeter to its area

Solution

Using formula,

Perimeter of the rectangle = 2(l + b)

where,

• l = length of the rectangle
• b = breadth of the rectangle

Substituting the given values,

⟶ 2(5 + 3)

⟶ 2(8)

⟶ 16 cm

❖ Perimeter of the rectangle = 16 cm

Using formula,

Area of the rectangle = l × b

Substituting the given values,

⟶ 5 × 3

⟶ 15 cm²

❖ Area of the rectangle = 15 cm²

Ratio of its perimeter to its area :-

Ratio = Perimeter of the rectangle/Area of the rectangle

⟶ 16 : 15

❖ Ratio of its perimeter to its area = 16 : 15

____________________________

Some related formulae :-

• Perimeter of reactangle = 2(l + b)
• Diagonal of rectangle = √l² + √b²
• Area of square = side × side
• Perimeter of square = 4 × side
• Diagonal of square = √2a