C° = 20 F°= R°= pakek cara tolong banget ya

20°C = °F
C:F = 5:9+( 32° )
F = ( 9/5 × 20° ) + 32
= 36 + 32
= 68°F
20°C = °R
C:R= 5:4
R = 4/5 × 20°
R = 16°R