$$ °F = (°C × 9/5) + 32 $$
Using this formula, we can convert 10°C to °F as follows:
$$ °F = (10 x 9/5) + 32 $$
$$ °F = (18) + 32 $$
$$ °F = 50 $$
Therefore, 10°C is equal to 50°F.
Similarly, we can convert 20°C to °F:
$$ °F = (20 x 9/5) + 32 $$
$$ °F = (36) + 32 $$
$$ °F = 68 $$
Therefore, 20°C is equal to 68°F.
So, 10 to 20 degrees Celsius is equal to 50 to 68 degrees Fahrenheit.
