Question

On a certain map 2cm represent 1km .what area does 20sq cm on the map represent

Answer 1

Answer:

It should be 5 sq km

Step-by-step explanation:

2 cm = 1 km

2 cm x 2 cm = 1 km x 1 km

4 sq cm = 1 sq km

1 sq cm = (1/4) sq km

20 sq cm = 20*(1/4) sq km

                = 5 sq km

20 sq cm will represent 5 sq km of area

Answer 2

Answer:

2cm=1km

=2cm×2cm=1km×1km

=4cm²=1km²

Then,

20cm²=4cm²×5

=1km²×5

=5km²

So, 5km² will represent 20cm² on the map