Answer:
heres some apps you can use to help you wolframalpha and mathly
Step-by-step explanation:
V=4/3pi(r^3)
V=4/3pi(9^3)
V=3,054 inches^3
Think this is right
Let one acute angle be X and one be Y
X+Y=90 -------Eq.1
2X+12=Y
2X-Y=-12------Eq.2
solving eq 1&2 we get,
3x=78
∴X=26
substituting value X in equation.1
X+Y=90
Y=90-26
∴Y=64
⇒answer:- X=26°
Y=64°
