Question

Peter wants to fence the park in front of his house on four sides as shown:
Find the total length of the fence required for the park.

• A. 5,200 km
• B. 5,290 m
• C. 52,000 km
• D. 52,900 m

Answer 1

The correct option is B 5,290 m

The lengths of the four sides are 1 km 60 m, 1 km 10 m, 1 km 20 m, and 2 km 200 m, respectively.

So,
$\text{Total length of fence = Sum of lengths of all}$
$\text{sides of the park}$

Add all four sides by taking the common units separately.


∴ Length of four sides = 5 km 290 m

We know, 1 km = 1000 m
$\Rightarrow 5\text{km}=5\times 1000\text{m}=5,000\text{m}$

So, length of all four sides = 5,000 m + 290 m = 5,290 m