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devlian [24]
3 years ago
7

5 squares are placed end to end as below (see pic). What is the perimeter of the rectangle formed by the squares?

Mathematics
1 answer:
Nataly_w [17]3 years ago
5 0
2b: If x is 2.1, then one side of the rectangle is 2.1, and another is 2.1*5=10.5.  Thus, the perimeter is 2*(2.1+10.5)=2*12.6=25.2.

3: One side of the square with side-length three will not be on the outside, so we have 3*3=9 inches perimeter from the square of side-length 3.  The square of side-length 6 has 3 from the top side missing from the outer perimeter, because it coincides with a side of the square of side-length three.  This square contributes 6*4-3=33 inches.  The total perimeter is 33+9=42 inches.
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