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Let radius of circle is ‘r’ cm And, length of the side of square is ‘a’ cm So, 22/7 × r2 = 308 Or, r2 = 98 cm Or, r = 7√2 cm So, Length of diagonal of square = √2 × a = 7√2 So, a = 7 cm Perimeter of square = 7 × 4 = 28 Perimeter of rectangle = 18/7 × 28 = 72 cm Hence, option d.
Petroleum is a mixture of-
The scientific name of vitamin B12is :
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The term Fire Ice is used for ___?
Ultra-purification of metals is achieved using:
Chloroquine is classified under which category of drugs?
Hydrogen was discovered by?
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What is the Chemical name of Chromic Acid?
What is the chemical name of quick lime?