True. The radius is half the diameter.
true
It is a straight line.
yes that is true
Nearly, I think you committed a typo: pi = circumference/diameter
The OBSERVABLE Universe has a diameter of about 93 billion light-years. "Observable" means that the light of anything beyond that hasn't had time to reach us, since the time of the Big Bang.
The observable Universe has a diameter estimated at 93 billion light-years.
True. The radius is half the diameter.
The observable universe is thought to be a sphere about 93 billion light years in diameter (see related link).
false is hair shaft
false is hair shaft
true
It is not true
No, quite the opposite.
FALSE
Water boils at 100 degrees Celsius at sea level.
It is a straight line.