The lateral surface area is the blue part. If we were to remove the yellow bases and cut the blue surface vertically then unroll it, you will obtain a rectangle.

Question

asked 2021-01-06

A cylinder has a surface area of 748 cm² and a radius of 7 cm. Estimate the volume of the cylinder to the nearest whole number.

asked 2021-02-10

A games shop sells marbles
in clear plastic cylinders.
Four marbles fit across the
diameter of the cylinder, and
10 marbles fit from the base
to the top of the cylinder.
Each marble has a diameter
of 2cm2cm. What is the area of
the plastic that is needed to
nake one cylinder?

asked 2020-12-29

Find the area of the figure to the nearest tenth.
[Pic]

asked 2020-12-16

The gazebo in the photo is built in the shape of a regular octagon. Each side is 13ft long and the enclosed area is 816.4ft^2

What is the length of the apothem?

What is the length of the apothem?

asked 2021-01-06

The gazebo in the photo is built in the shape of a regular octagon. Each side is 6 ft long, and the enclosed area is 172.8 ft². What is the length of the apothem?

asked 2020-12-28

Surface area Suppose that the radius rr and surface area
\(S=4πr2S=4πr^{2}\)

of a sphere are differentiable functions of tt. Write an equation that relates dS/dtdS/dt to dr/dtdr/dt.

of a sphere are differentiable functions of tt. Write an equation that relates dS/dtdS/dt to dr/dtdr/dt.

asked 2020-10-23

Surface area Suppose that the radius rr and surface area
\(\displaystyle{S}={4}π{r}{2}{S}={4}π{r}^{{{2}}}\)

of a sphere are differentiable functions of tt. Write an equation that relates dS/dtdS/dt to dr/dtdr/dt.

of a sphere are differentiable functions of tt. Write an equation that relates dS/dtdS/dt to dr/dtdr/dt.

asked 2020-11-23

a cube-shaped cat hideaway is 8ft cubed. On 3 sides there is a 1 ft opening. What is the area in fractions of the surface area that is not an opening?

asked 2020-11-27

Find the surface area of the prism.

asked 2020-10-26

[Pic of triangle]
Find the volume of the pyramid. Write your answer as a fraction or mixed number.