Question

m,
what
5 The length of a rectangular field is 100 m. If its perimeter is 300
is its breadth?
a baba​

Answer 1

Step-by-step explanation:

Given:-

In a rectangular field

length=100m

perimeter=300m

To find:-

Breadth

Solution:-

Let the breadth=x

As we know in a rectangle

${:}\longrightarrow$${\large{\boxed{perimeter=2(l+b)}}}$

${:}\longrightarrow$$2(100+x)=300$

${:}\longrightarrow$$200+2x=300$

${:}\longrightarrow$$2x=300-200$

${:}\longrightarrow$$2x=100$

${:}\longrightarrow$$x={\frac{100}{2}}$

${:}\longrightarrow$$x=50$

${:}\longrightarrow$${\underline{\boxed{\bf{breadth=50m}}}}$

Answer 2

Answer:

2 (l + b) = perimeter

2 (100 + b) = 300

100 + b = 300÷2

100 + b = 150

b = 150 -100

b = 50