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Class 7 Mathematics area of varied shapes questions and answers

A circular cut-out of diameter 14 cm is removed from a square board of length 30 cm. What is the area of the piece of board that remains? (Take $pi=22/7$ )
A. 856 $cm^2$
B. 154 $cm^2$
C. 746 $cm^2$
D. 284 $cm^2$

(5m 33s)

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