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Post-UTME Mathematics 2007 Objective — Question 7

Question 7 of 10 from the Post-UTME Screening (Post-UTME) Mathematics 2007 Objective paper, with the correct answer and a full explanation.

Find the length of a side of a square which is equal in area to a rectangle measuring 45 cm by 5cm

A. 25cm
B. 23cm
C. 16cm
D. 15cmCorrect

Explanation

Area of rectangle = 45x5=225cm^2. Side of square = sqrt(225) = 15cm.

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