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Post-UTME Mathematics 2013 Objective — Question 97

Question 97 of 100 from the Post-UTME Screening (Post-UTME) Mathematics 2013 Objective paper, with the correct answer and a full explanation.

The area of a circle is 154cm². Find its circumference. (take π=22/7)

A. 7cm
B. 14cm
C. 308cm
D. 44cmCorrect

Explanation

πr²=154 gives r²=49, r=7. Circumference=2πr=2(22/7)(7)=44cm.

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