Perimeter can be found by the formula : Perimeter = 2L + 2 W
Perimeter = 2L + 2 W
Perimeter = 2(2a) + 2(a + 1) . ← Option 4
Perimeter = 4a + 2a + 2
Perimeterr = 6a + 2 ← Option 5
Perimeter can also be found by simply adding up all the 4 sides:
Perimeter = L + W + L + W
Perimeter = L + W + L + W
Perimeter = 2a + a + 1 + 2a + a + 1 ← Option 3
Perimeter = 3a + 1 + 3a + 1 ← Option 1
Answer: Option 1, 3, 4 and 5 are correct.
