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You can read posting Sarin learns Perimeter, Area and Volume in school(Math Concept) to learn the concept of perimeter and area.
Read also the posting on Sarin learns Shapes and Solids in school (Math Concept) to know about shapes
Read also the posting on Sarin learns concept of ratio in school to understand the concept of Ratio.
Challenge yourself with the question before look out for the given solution‼!
Upper primary school mathematics question UPQ276
The ratio of the length of a rectangle to its breadth is 5 : 1. Given that the area of the rectangle is 125 cm2, find its perimeter.
From the model,
Area of one unit = 125 ÷ 5 = 25cm2
B × B = 25 = 5 × 5
The breadth of the rectangle = 5 cm
The length of the rectangle = 5 × 5 = 25cm
The perimeter of the rectangle = 5 × 6 × 2 = 60cm
The length (L) is 5 times the breadth (B)
Area = Length × Breadth
5B × B = 125
B × B = 25
B = 5cm
L = 5 × 5 = 25cm
Perimeter = 2 × 30 = 60cm