Option 4 is the best answer
Given a circle with a diameter of 4, which equation expresses π as the ratio of the circumference of a circle to its diameter?
2 answers:
Answer:
Step-by-step explanation:
Circumference(C) of a circle is given by:
....[1]
where, r is the radius of the circle.
As per the statement:
Given a circle with a diameter of 4.
We know that:
Diameter(D) = 2r
⇒2r = 4
Substitute the value in [1] we have;
⇒
Divide both sides by 4 we have;
Therefore, the the ratio of the circumference of a circle to its diameter is,
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They will be 15 miles apart after one hour if they left the same point at the same time.
<h3>How do we measure and calculate the distance in Geometry?</h3>The distance between two points in geometry can be calculated by using the Pythagoras theorem.
Mathematically, the Pythagoras theorem can be expressed as:
where;
- x and y are opposite and adjacent sides respectively.
d = 15 miles
Therefore, we can conclude that they will be 15 miles apart after one hour if they left the same point at the same time.
Learn more about calculating the distance between two points here:
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