Question

the perimeter of a rectangular chart is 150cm.if it's length is 45 cm, find its breath and area.​

Answer 1

Perimeter = 150 cm

2 × (l + b) = 150

2 × (45 + b) = 150

45 + b = 75

45 + b = 75

b = 75 - 45

b = 30 cm

Area = l × b

= 45 × 30

=1350 cm²

Answer 2

Answer:

breadth of the rectangular chart is 30cm

area of the rectangular chart is 1350cm sq.

Step-by-step explanation:

Perimeter of a rectangle is 2(l+b)

since the perimeter of the rectangular chart is 150cm

2(l+b)=150cm

(l+b)=75cm

since l=45cm

b=75-45

b=30cm

area of a rectangle is lb

45*30

area of rectangular chart is 1350cm sq.