The following triangles are congruent by_

AAS
SAS
ASA
Can't determine

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

How is working backward similar to solving an equation?