Question

A rectangular area having length and breadth equals to 12 m and 8 m respectively is
to be bounded by 50 cm broad garden from outside. What is the total area of the
garden?

Answer 1

Answer:

total area of the garden= 21 sq m

Step-by-step explanation:

inner rectangle

l= 12 m

b= 8 m

area of inner rectangle= 12×8= 96 sq m

width of garden 50cm

outer rectangle

L= 12m + 50cm+50cm= 13 m

B = 8m + 50cm+50cm= 9 m

outer rectangle area= 13× 9= 117sq m

total garden area= outer rectangle area - inner rectangle area

= 117 - 96

= 21 sq m

total area of the garden= 21 sq m

Answer 2

Answer:

21cm sq

Step-by-step explanation:

Inner rectangle's dimensions=

Length = 12m

Breadth = 8m

Area = L*B = 12 * 8 = 96

Outer rectangle's dimensions=

Length = 12 + width of garden

Breadth = 8 + Width of garden

=Length = 12 + 50 +50 = 13m

 Breadth = 8 +50+50 = 9m

13*9 = 117

= 117 - 96

= 21 sq m