Question

Practice set 1.5 2nd question

Answer 1

Answer:

We know that the opposite sides of a rectangle are equal. Thus, we can say that :

2x + y + 8 = 4x - y

=》 x = y + 4 ... (1)

2y = x + 4 ... (2)

(1) in (2):

=》 x = 12

=》 y = 8

Perimeter = 2 ( l + b )

= 40 units

Area = l × b

= 96 sq. units