Question

find the length of a rectangle given that its perimeter is 800 m and Length is 300m​.

Answer 1

Here, as per the provided question we are asked to find the breadth of rectangle–

Given :-

• Perimeter of rectangle = 800 m
• Length of rectangle = 300 m

Need to find :-

• Breadth of rectangle = ?

Step - by - step - explanation :-

• So, considering here breadth 'b' (undefined)

Using Formula :-

${\pmb{ \sf{\dashrightarrow{ \boxed{\sf{Perimeter = 2(l + b)}}}}}}$

Where,

• L = Length of rectangle
• B = Breadth of rectangle

Substituting the given values in the above equation : we get,

→ 800 = 2(300 + b)

→ 800 = 600 + 2b

→ 800 - 600 = 2b

→ 200 = 2b

→ 200/2 = b

→ 100 = b

Therefore,

• Breadth of rectangle is 100m.

Check :-

• Put the value of b in formula.

${\pmb{ \sf{\dashrightarrow{ \boxed{\sf{Perimeter = 2(l + b)}}}}}}$

→ 800 = 2(300 + 100)

→ 800 = 2(400)

→ 800 = 800

Thus, Both sides are equal / same.

Hence, Solution is checked !