A= 0.5 m x 20 cm

A= 0.5 m x 20 cm

A = 50 * 20

but I don't get how to tell if it is m or cm

0.5 m = 50 cm

Does the question ask for it to be in cm or m? If it is supposed to be in cm then the answer is A = 50 cm x 20 cm

if it is supposed to be in m then the answer is A = .5m x .2m

To find the value of A, we need to multiply 0.5 meters by 20 centimeters.

When it comes to units of measurement, it's important to ensure that both values are in the same unit before performing any calculations. In this case, we need to convert the centimeters to meters or vice versa.

Since there are 100 centimeters in 1 meter, we can convert the 20 centimeters to meters by dividing it by 100:

20 cm รท 100 = 0.2 meters

Now, we can multiply the two values together to find A:

A = 0.5 meters x 0.2 meters

A = 0.1 square meters