Question

b) A rectangular field is 32 m long and its perimeter is 114m
0 Find the breadth of the field.
) Find the area of the field.
id) Find the cost of plastering the field at Rs 30 per sq meter​

Answer 1

Answer:

The breadth of the field is 25m.

Area of the field is 875 sq. metre.

The cost is Rs. 26250.

Answer 2

Given :-

• A rectangular field is 32 m long

• Perimeter of the rectangular field is 114 m

To Find :-

• The breadth of the rectangular field

• The area of the field

Solution :-

Formula used :-

$\large \begin{gathered}{ \boxed{ \underline{ \sf{ \blue{Perimeter = 2 ( l + b )}}}}} \end{gathered}$

$\rightarrow\sf{114m = 2 ( 32+ b )}$

$\rightarrow \sf{114m = 64 + 2b}$

$\rightarrow \sf{2b = 114 - 64}$

$\rightarrow \sf{2b = 50}$

$\rightarrow \sf{b = \dfrac{ \cancel{50}}{ \cancel2} }$

$\rightarrow \sf{b = 25m}$

$\begin{gathered} { \boxed{ \underline{ \bf{ \green{•°• Breadth = 25 m}}}}} \end {gathered}$

______________________

★ Area of the rectangular field :-

Formula used

$\large \begin{gathered} { \boxed{ \underline{ \sf{ \green{Area = l × b}}}}} \end{gathered}$

$\rightarrow \sf{Area = 32 m× 25m}$

$\rightarrow \sf{Area = 800m²}$

______________________

d) Cost of plastering the rectangular field

~ it's given that we have to find the cost of plastering the field at Rs.30 per square metre

Answer = 800 × 30 = Rs.24000