Answer:
It gives u answer in picture
Step-by-step explanation:
Free points?
Answer:
CSA of cylinder= 2πr(h+r)
=2 π×9 (21)
= 378π cm²
now
CSA of hole= 2πr
12π cm²
Answer:
-3 1/8 as a decimal is -3.125
Answer:
x = 60
Step-by-step explanation:
That square on the angle means 90 degrees so since the other angle is 30 that means x has to be 60