20 degrees Celsius is equivalent to 68 degrees Fahrenheit.Here's why:Using the formula [tex]F = \frac{9}{5} T_c + 32[/tex], where [tex]T_c[/tex] is the temperature in Celsius:For [tex]$$ 20^\circ C $$[/tex]:[tex]F = \frac{9}{5} \times 20 + 32 = 36 + 32 = 68^\circ F[/tex]