Answer:
calculate the number of atom in 3 mol helium
Answer:
777 is an example of a three digit number that is not divisible by 5
Step-by-step explanation:
777/5 = 155.4
it’s the second one..................
Hey!!!
Answer is....
diagonals of square bisect each other at right angles.
let diagonal be 2x
Using Pythagoras in a triangle enclosed by a side and 2 half diagonals...




side of a diagonal=2 sqrt50

cm......
HOPE IT HELPS YOU '_'