a string of length 60 cm is used to form two equal circles. what wil the total circumference of the two equal circles ?
1 answer:
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ANSWER
a. d+4
b. 4d+16
EXPLANATION
The area of the square coaster is represented by:
We split the middle term to obtain,
We factor by grouping to get,
Since area of a square is l² , it means the side length of the square is
b) The perimeter of a square is given by
We substitute the length in terms of d, to obtain;
Or