Answer:
(a) 31.4 in (b) 37.68 mm
Step-by-step explanation:
a- The circumference of a circle of radius r - or diameter d, is,
C=2[tex]\pi r[/tex]=[tex]\pi d[/tex]
In this case, we have that the diameter of the circle is d = 10in. If we use 3.14 for π, the circumference is,
[tex]C=\pi xd=3.14x10in=31.4in[/tex]
b- - The question gives us a circle with a radius of 6mm and we are asked to find the circumference of the circle.
- To find the circumference of a circle, we simply need to apply the formula for finding the circumference of a circle.
- The formula for the circumference of a circle is:
C=2[tex]\pi [/tex]×r
where,
r=radius
C= circumference of the circle:
- Thus, we can find the circumference of the circle as follows
r= 6mm
[tex]\pi [/tex]=3.14
C=2×3.14× 6mm
C= 37.68mm
Final Answer
The circumference of the circle is 37.68 mm
