If the length of a rectangle is doubled and breadth is halved, then what would be the effect on its
perimeter and area?
Answers
Answer:
Doubling one dimension would double the area, and taking half of one would half the area, doing both at the same time exactly cancels out. ... We now see that there is NO CHANGE in the area A of a rectangle if we double its length and also reduce its width by one-half.
Answer:
If we take length as l and breadth as b, the general area would be l×b
Now considering the conditions, the new length is 2l and the new breadth is b/2. Hence the new area would be the product of the new measurements which would be 2l × (b/2) = l×b.
We now see that there is NO CHANGE in the area A of a rectangle if we double its length and also reduce its width by one-half.
If we take length as l and breadth as b, the general perimeter would be 2(l+b)
Now considering the conditions,
Perimeter = 2(2l+b/2) = 2((4l+b)/2) = 4l+b
Please mark as Brainliest if it is correct.
Step-by-step explanation: