Step-by-step explanation:
That's the system of numbering in indian system it is like thousand lakh ten.lakh crores and in international it is thousand ten thousand and hundred thousand and million
The answer is 3/5 because i did the math on my paper and yea
Answer:

Step-by-step explanation:
The range of a projectile is given by :

Put R = 20 m, u = 15 m/s and finding the value of angle of projection
So,

So, the required angle of projection is equal to
.
According to my calculations the answer is 69