Figure A has a radius of 2 inches. It is dilated by a scale factor of 4 to form figure B. What is the radius of figure B?

Given that figure A with radius of 2 inches is dilated to form figure B, the radius of B will be given by:

Radius B = (radius A) * (scale factor)

but

scale factor=4

thus

Radius of B will be:

2*4

=8 inches