Question content area top
Part 1
Use the given circumference to find the surface area of the spherical object.
a pincushion with Cequals6 cm
Question content area bottom
Part 1
The surface area of the pincushion is
enter your response here cm squared.
(Round to the nearest whole number as needed.)
3 answers
94 cm squared
wrong
My apologies. Let's calculate the surface area of the pincushion.
The formula for the surface area of a sphere is:
Surface Area = 4πr^2
where r is the radius of the sphere.
Given that the circumference is 6 cm, we can find the radius using the formula for the circumference of a sphere:
Circumference = 2πr
6 = 2πr
r = 3/π ≈ 0.955 cm
Now we can calculate the surface area:
Surface Area = 4π(0.955)^2
Surface Area ≈ 11.47 cm^2
So, the surface area of the pincushion is approximately 11 cm squared.
The formula for the surface area of a sphere is:
Surface Area = 4πr^2
where r is the radius of the sphere.
Given that the circumference is 6 cm, we can find the radius using the formula for the circumference of a sphere:
Circumference = 2πr
6 = 2πr
r = 3/π ≈ 0.955 cm
Now we can calculate the surface area:
Surface Area = 4π(0.955)^2
Surface Area ≈ 11.47 cm^2
So, the surface area of the pincushion is approximately 11 cm squared.
1 answer