Question

find the length of a rectangular playground whose perimeter is 400 m and breath is 50 m​

Answer 1

answer- 350 lenght

Step-by-step explanation:

the rectangular playground perimeter

is -400

400

-50

350

the total lenght is 350

Answer 2

Answer:

∴ The breadth of a rectangular playground is $150$ m.

Step-by-step explanation:

• In context with question asked,
• We have to find the length of rectangular playground.
• It is given that, The perimeter of a rectangular playground = $400$ m

       Breadth of a rectangular playground = $50$ m

• We know that, rectangle has four sides and four right angles. Its two pairs of opposite sides are parallel.
• Perimeter of a rectangular playground is the sum of all sides of rectangle.
• The formula for rectangular playground is given by,

      Perimeter of a rectangular playground = $2(l+b)$

                                               ∴ $400=2(l+50)$

                                               ∴ $400=2l+100$

                                                  ∴ $2l=400-100$

                                                   ∴ $l=\frac{300}{2}$

                                                   ∴ $l=150$ m

• ∴ The breadth of a rectangular playground is $150$ m.