On a day when the temperature reaches 50°F, the temperature in degrees Celsius is: 20°C

10°C

5°C

10°C

Explanation:

To convert °F to °C, we use the formula:

°C = (°F - 32) * (5/9)

So, to convert 50°F to the equivalent in °C, we can proceed as follows:

°C = (50 - 32) * (5/9)

°C = (18) * (5/9), which is, approximately,

°C = 9.999999999 ... ≈ 10 (5/9 ≈0.555555 ...)

So, 50°F is equivalent to 10°C.