The width of the rectangle is 2 cm. What is the length if the perimeter is 12 cm?
| December 11, 2020 | education
b = 2 cm
P = 12 cm
a – ?
the perimeter is found by the formula: P = 2 (a + b)
we substitute the known values into the formula and get:
2a + 4 = 12
2a = 6
a = 3
Answer: the length is 3 cm
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