Question

(a) Find the expression for the area and perimeter of the rectangle in Fig. 3.
(x2 + 5) cm
(x + 3) cm
Fig 3​

Answer 1

Answer:

l= (x^2+5)cm

b= (x+3)cm

area of rectangle = lxb

=(x^2+5)(x+3)

= x^3+3x^2+5x+15

perimeter of rectangle =2 (l+b)

=2 (x^2+5+x+3)

= 2x^2+10+ 2x+6

= 2x^2+2x+16