A cylinder can be considered a cone whose apex has moved to infinity.
A cylinder
A conical shape is defined to be shaped like a cone. A cone is a hollow or solid object that dwindles from a circular or as close to circular as possible down to a point.
megaphones are a device that loud-ens sound to a distance.
A cone has one side, the bottom surface, but not all cones have this surface. They may also be considered to have 'an inside' and 'an outside', which would be two sides. But as a relative of the circle, a cone has mathematically infinite sides.
Normally sound will spread out in as many directions as it can from a source. As it spreads out with distance, it loses energy (loudness). A megaphone is a cone that limits the directions that the sound can spread into. It concentrates the sound in the forward direction, so that it sounds louder in that direction at longer distances. The tradeoff is that the sound is much quieter off to the sides of the cone than it would be if the megaphone weren't used
To make a paper megaphone, you will need a piece of stiff paper or cardstock. Roll the paper into a cone shape, ensuring one end is narrower for speaking into, and the other end is wider to amplify sound. Secure the cone shape with tape or glue, and your paper megaphone is ready to use!
Megaphone is a noun.
I'll forego the megaphone. Your megaphone could use a fresh coat of paint.
The cheerleader used a megaphone to amplify her voice during the pep rally.
Megaphone - band - was created in 2004.
Megaphone Team was created in 2003.
I used a megaphone to get the students attention.
The first thing I thought was the same as you, probably: get a megaphone cake pan and bake the cake in it. Wrong answer: Wilton, who makes cake pans in just about any novelty shape you want, doesn't make a megaphone pan. So...what I would recommend is to make a sheet cake. Cut a cone shape out of it. If you're REALLY slick you could use a bread knife to make the cone rounded like a megaphone is but if you decide to try it make a cake to practice with because it's pretty easy to screw this up. (I wouldn't bother; the cone shape will get you where you need to go.) Then cover the cake in rolled fondant so it'll be pretty, and decorate it like the megaphones your school's cheerleaders use. As for the handle, there are a couple ways to go. You could cut a handle design into the cake, or you could use rope licorice.
a cone-shaped device for magnifying or directing the voice, chiefly used in addressing a large audience out of doors or in calling to someone at a distance. Compare bull horn. ARE YOU STUPID
The Braindead Megaphone has 272 pages.
A megaphone is something cheerleaders speak into to be louder!