By which rule are these triangles congruent?
a) aas
b) asa
c) sas
d) sss

Pls will give brainliest and all p.s u can zoom in if u cant see plss

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.