Question

1. (a) The side of a square is 12 cm. Find (1) its area, (11) its perimeter, and (11) the length of a
diagonal​

Answer 1

Step-by-step explanation:

area = 12× 12= 144

perimeter= 4×12=48

lenghth of diagonal 12√2

$a \sqrt{2}$

Answer 2

Answer:

Side of square= 12 cm

i) Area of square = (Side)²

= (12)²

= 144 cm²

(ii) Perimeter of square= 4×side

= 4× 12

= 48 cm²

(iii) Length of diagonal = √2×side

= √2 × 12

= 12√2 cm