Question

why there is 28 days in feb....and why year multiple of 4 have 29 days
in feb...​

Answer 1

Answer:

because earth don't complete it's rotation

in 365 days. it take 365 days and 6 hrs also

so after four the addition of 6hrs add into february.so thats why there is 29 days in leap

year or multiple of 4 have

Answer 2

Answer:

it is because earth completes one revolution around the sun in 23 hrs,56 mins,4.09 sec nearly 24 hrs hence each 4th year will have a day extra which we assume to be in feb hence we have a leap year

Explanation:

hope my answer satisfying your question