Question

plz write answer these question​

Answer 1

Answer:

Length = 63 m

Breadth = 21 m

Step-by-step explanation:

Let breadth be x and length be 3x

Given perimeter = 168 m

As per the question,

2(3x+x)=168

=> 2×4x=168

=> 8x=168

=> x=168/8

=> x=21

Therefore, its breadth is 21 m and length = 21×3= 63 m

Answer 2

Given

• The length of a rectangular park is thrice its breadth.
• Perimeter of the park is 168 metres.

⠀

To find

• Dimensions of the park.

⠀

Solution

• Let the breadth of the park be b.
• Then, the length of the park will be 3b.

⠀

❍ We know that

⠀

★ Perimeter = 2(l + b)

⠀

• Putting the values

⠀

→ 168 = 2(3b + b)

⠀

→ 168 = 2 × 4b

⠀

→ 168 = 8b

⠀

→ b = 168/8

⠀

→ b = 21

⠀

• Now, calculating the length

→ Length = 3b

→ Length = 3 × 21

→ Length = 63

⠀

Hence,

• Dimensions of the rectangular park is

⟹ Length = 63 meters

⟹ Breadth = 21 meters

⠀

━━━━━━━━━━━━━━━━━━━━━━