A) 4 cm |
B) 5 cm |
C) 5.5 m |
D) 6 cm. |
B) 5 cm |
Perimeter of first square = 12 cm.
Therefor, Its side = \( \Large \frac{12}{4}=3\ cm \)
Therefore, Its area = \( \Large 3^{2} = 9\ sq.cm. \)
Perimeter of second square = 16 cm
Therefore, Its side = \( \Large \frac{16}{4} = 4\ cm \)
Therefore, Its area = \( \Large 4^{2} = 16\ sq.cm. \)
Therefore, Area of new square = 9 + 16 = 25 sq. cm
Its side = \( \Large \sqrt{25} = 5\ cm \)