A rectangle has an area of 10cm2. If each side has its length doubled. What is the new area
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let l be the length and b be the breadth.
given l×b=10
when both doubled
l'=2l and b'=2b where l' and b' are the increased sides
l'×b' = new area =2l×2b=4(l×b)=4×10=40cm^2
given l×b=10
when both doubled
l'=2l and b'=2b where l' and b' are the increased sides
l'×b' = new area =2l×2b=4(l×b)=4×10=40cm^2
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