Question

If the radius of a circle is 19 what’s the circles diameter

Answer 1

38

Explanation:

1. R × 2 = D
2. 19 × 2 = D
3. 19 × 2 = 38

I hope this helps!

Answer 2

d = 38

General Formulas and Concepts:

Pre-Algebra

• Order of Operations: BPEMDAS

Geometry

• Diameter: d = 2r

Explanation:

Step 1: Define

Radius r = 19

Step 2: Find diameter

1. Substitute: d = 2(19)
2. Multiply: d = 38

And we have our final answer!