False
Step-by-step explanation
Weight is a quantity representing the force exerted on a particle or object by an acceleration field, particularly the gravitational field of the Earth at the surface it depends on the acceleration of the gravity, on earth g= 9.8 m/s^2
and mass is the measure of matter in a particular object, so when you say
weight is 45kg
It is False because Kilograms is a measure of mass ( matter)