12.
12x3 is already 36, more than 30..
Volume of a sphere = (4/3) × π × r3 therefore the answer is 36 pie
we have
10 3/11 + 3 9/11=(10+3)+(3/11+9/11)=13+(12/11)=13=(13=(
Cos(x°) = (√3)/2
cos⁻¹[(√3)/2] = x°, that means x° = 30°
You multiply fractions simply by multiplying numerators and denominators with each other:
