See attachment for solving by elimination
The circumference of a circle is approximately 39.25 mm. What is the length of the diameter?
1 answer:
Answer:
<h2>12.5 millimeters (mm).</h2>Step-by-step explanation:
<u>Explain/define:</u>
<u>CIRCUMFERENCE: THE DISTANCE AROUND A CIRCLE.</u>
<u>DIAMETER: THE LENGTH OF A STRAIGHT LINE THROUGH THE CENTER OF A CIRCLE.</u>
<u>Mathematics: Formula</u>
<u>Mathematics: Solve</u>
To find the length of the diameter from the circumference, divide the circumference by pi. The quotient is the diameter.
3.14 is often used for pi.
<u>Conclude:</u>
Therefore, the length of the diameter of the circle is 12.5 millimeters (mm).
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Answer:
Step-by-step explanation:
If the length of one side of A is a, then B is twice that of A, so the length of one side is 2a. The circumference of A is 4a, B is 8a
B : A = 8a : 4a = 2 : 1