8) The length of sides of a rectangle are 5cm and 3.5cm. Find the ratio of its Perimeter to Area.
Answers
Answer:
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Step-by-step explanation:
Length of the rectangle l=5cm
Breadth of the reactangle, b=3.5cm
Perimeter of the rectangle = 2(l+b)
= 2∗(5+3.5)=2∗8.5=17cm
Area of the rectangle = l∗b
= 5∗3.5=17.5cm
2
Perimeter of the rectangle : Area of the rectangle
= 17:17.5
=
17.5
17
=
175
170
=
175÷5
170÷5
=
35
34
=34:35
Thus, the ratio of perimeter to area of the rectangle is 34:35
★ Given:-
- Length of rectangle = 5cm
- Breadth of rectangle = 3.5 cm
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★ To Find:-
- Ratio of its Perimeter and Area
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★ Solution:-
➣ Finding perimeter of field
Perimeter of field
= Perimeter of rectangle
= 2 ( length + breadth)
= 2 ( 5 + 3.5 )
= 2 × 8.5
= 17 cm
➣ Finding area of field
Area of field
= Area of rectangle
= length × breadth
= 5 × 3.5
= 17.5 cm
➣ Finding ratio of perimeter and area
Ratio = Perimeter : Area
= 17 : 17.5
= 17 × 10 : 17.5 × 10
= 170 : 75
= 170÷5 : 175÷5
= 34 : 35
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★ Answer:-
Ratio of perimeter is to area is 34 : 35.
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