The cylinder has a volume of 12 pi cubic inches and a diameter of 4 inches​

Aline passes through 3,7 and 6,9 what equation represents the line

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)