A circular logo is enlarged to fit the lid of a jar. The new diameter is 50 percent larger than the original. By what percentage has the area of the logo increased?
Created: 6 years ago |
Updated: 3 years ago
best des
Hints : 50% large মানে আগে 1 হলে এখন 1.50 diameter অর্থাৎ পরিধি = 2πr ; সুতরাং , নতুন r = 1.50 তাহলে area বাড়বে ( 1.5) 2 অনুপাতে বা 2.5 অনুপাতে
আগের থেকে পার্থক্য = 2.25 - 1 = 1.25 = 125%
Md Azizur Rahman
Founder of Satt
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