The area of a rectangular field whose length is twice its breadth is 2450 m². Find the perimeter of the field.
Solution:
Given, the area of a rectangular field is 2450 m².
The length is twice its breadth.
We have to find the perimeter of the field.
We know, area of rectangle = length × breadth
Given, length = 2 × breadth
2450 = 2 × breadth × breadth
2450/2 = breadth²
Breadth² = 1225
Taking square root,
Breadth = 35 m
So, length = 2 × 35 = 70 m
We know, perimeter = 2(length + breadth)
= 2(70 + 35)
= 2(105)
= 210 m
Therefore, the perimeter is 210 m.
✦ Try This: The area of a rectangular field whose length is thrice its breadth is 2800 m². Find the perimeter of the field.
☛ Also Check: NCERT Solutions for Class 8 Maths
NCERT Exemplar Class 8 Maths Chapter 3 Sample Problem 30
The area of a rectangular field whose length is twice its breadth is 2450 m². Find the perimeter of the field
Summary:
The area of a rectangular field whose length is twice its breadth is 2450 m². The perimeter of the field is 210 m
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