UPTET Feb 2016,p1; Q119
0. If the perimeter of a square is (4a + 8) unit, then its area will be
- Option : D
- Explanation : Let the length of square be x unit.
Then, 4x = 4a + 8,
4x = 4 (a + 2).
⇒ x = a + 2
∴ Area of square = x2
= (a + 2)2 = (a2 + 4a + 4)sq unit.
