Answer:
Actual Perimeter = 100 km
Actual Area = 625 km²
Explanation:
A scale drawing of a square has a side length of 5 millimeters.
The drawing has a scale of 1 mm : 5 km (which represents 1 mm is equal to 5 km)
We need to find the actual measurement of 5 mm square on scale.
1 mm = 5 km
5 mm = 5 × 5 km
= 25 km
The actual length of the side of square is 25 km
Now, we find the perimeter and area of the square.
- Perimeter of square = 4 × side
= 4 × 25
= 100 km
- Area of the square = side × side
= 25 × 25
= 625 km²
Hence, The actual perimeter is 100 km and area of the square is 625 km²