Question

Mario’s company makes unusually shaped imitation gemstones. One gemstone had 12 faces and 20 edges. How many vertices did the gemstone have?

34 vert.
10 vert.
30 vert
8 vert.

Answer 1

Have you use Euler's Formula before?

Answer 2

once or twice but I'm not sure exactly what it is

Answer 3

http://www.mathsisfun.com/geometry/eulers-formula.html

Answer 4

But hows that work when I don't have the number of vertices? I put it in as x and solve the equation?

Answer 5

So for any convex polyhedron, the relationship between the Edges, Vertices, and Faces is given by:\[\bf F+V-E=2\]Substitute for the already given number of faces and number of edges and solve for the number of vertices:\[\bf 12+V-20=2 \implies V=?\]

Answer 6

Oh, ok! I'll so that right now

Answer 7

*do

Answer 8

And you understand what convex means right?

Answer 9

I got 10 vertices =D Isn't convex smaller then 180? Or is that 360?

Answer 10

Poems
Demons Of Darkness

She stood on the bridge
In silence and fear
For the d

Answer 11

Help

Answer 12

My Gayly fabulous poems

Answer 13

My attempt at trying to take back my poem spotlight

Answer 14

New Story (WIP/Bob isn't allowed to comment)

Answer 15

poem club

Answer 16

Gay poems

Answer 17

hello rrainis1

Answer 18

What is the volume of a right rectangular prism with a base that measures 4 in by 6 in.

Answer 19

AP Lang memories

Answer 20

Joe is trying to find out how many cubic centimeters of sand he can fit in a hole he dug in his backyard.

Answer 21

im writting a story to be published can someone give me critisim? please

We are five runaway teens who have parents who donu2019t pay attention to us that

Answer 22

Physics Final Exam Study Guide

Any posts will be deleted and will results in a suspension.

Answer 23

Jethro wants a swimming pool in his backyard, so he digs a rectangular hole with dimensions 40 feet long, 20 feet wide, and 5 feet deep.

Answer 24

Don approaches the group, stops a few feet away to stare toward the house, then looks back toward the group.

Answer 25

According to Laura, the compound with the chemical name phosphorus trichloride has one atom of phosphorus and four atoms of chlorine.

Answer 26

History help please

Answer 27

Consider the following equilibrium system:

2 NO(g)+Cl2(g)u21cc2 NOCl(g).

At a certain temperature, the equilibrium concentrations are as follows: [NO]=0.

Answer 28

Read the quotation below. Then, determine the definition of servitude and list three context clues which contribute to the definition.

Answer 29

Can someone teach me from 6th grade grammar to 9th grade grammar?