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A circle has a radius of 3 cm. What is the diameter in millimeters? (2023)
Practice Questions
Q1
A circle has a radius of 3 cm. What is the diameter in millimeters? (2023)
30 mm
60 mm
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120 mm
Questions & Step-by-Step Solutions
A circle has a radius of 3 cm. What is the diameter in millimeters? (2023)
Steps
Concepts
Step 1: Understand that the radius of the circle is given as 3 cm.
Step 2: Recall that the diameter of a circle is twice the radius.
Step 3: Calculate the diameter by multiplying the radius by 2: 2 * 3 cm = 6 cm.
Step 4: Convert the diameter from centimeters to millimeters. Since 1 cm = 10 mm, multiply 6 cm by 10: 6 cm * 10 = 60 mm.
Circle Geometry
– Understanding the relationship between radius and diameter, and converting units.
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