Q. After stepping into a room with unusual lighting, Sasha's pupil has a radius of 3millimeters. What is the pupil's diameter?_____ millimeters
Understand relationship between radius and diameter: Step 1: Understand the relationship between radius and diameter.The diameter of a circle is twice the radius.Calculation: Diameter =2× Radius =2×3mm.
Perform multiplication to find diameter: Step 2: Perform the multiplication to find the diameter.Calculation: 2×3=6 mm.