All categories

2 years ago

A polyhedron has 24 edges and 12 vertices. how many faces does it have

Mathematics

1 answer:

Georgia [21]2 years ago

5 0

ANSWER

14 faces

EXPLANATION

The relation between the number of faces, the number of vertices and the number of edges a polyhedron has is given by the formula,

F+V=E+2.

It was given that, the number of edges is

E=24 and the number of vertices is

V=12.

We substitute the values into the formula to find F, the number of faces.

F+12=24+2

Group similar terms,

F=24+2-12

F=14.

Hence the polyhedron has 14 faces.

You might be interested in

if emma spent $14.00 on jewerly and recieved $6.00 in change how much money did she spent . what equation could be used to find

rjkz [21]

14.00-6.00=8.00 if the cashier gave her 6.00 then she spent at least 8.00

7 0

2 years ago

At 5.45p.M .,lixin,khairul and Devil are at the starting point of a 1-km circular path. Lixin Takes 18 minutes to walk one round

sweet [91]

Answer:

$Meeting\ Time = 6:03\ pm$

Step-by-step explanation:

Given

$Start\ Time= 5:45pm$

$Lixin = 18\ min/round$

$Khairul = 360\ seconds/round$

$Devi = 4minutes/2\ rounds$

Required

Determine their next meeting time

First, we need to get their unit rate in minutes per round

$Lixin = 18\ min/round$

$Khairul = 360\ seconds/round$

Convert 360 seconds to minutes

$Khairul = \frac{360}{60} min/round$

$Khairul = 6 min/round$

$Devi = 4minutes/2\ rounds$

Divide by 2/2

$Devi = 2mins/round$

So, we have:

$Lixin = 18\ min/round$

$Khairul = 6 min/round$

$Devi = 2mins/round$

Next, is to determine the LCM of 18, 6 and 2

$18=2 * 3 * 3$

$6 = 2 * 3$

$3 = 3$

Their LCM is:

$LCM = 2 * 3 * 3$

$LCM = 18$

This means that they will meet 18 minutes after their initial time of departure.

So:

$Meeting\ Time = 5:45\ pm + 18\ minutes$

$Meeting\ Time = 6:03\ pm$

3 0

2 years ago

$7.50 per ticket. the theater earned $450 from ticket sales tuesday's performance. which equation can be used to find the number

Norma-Jean [14]

Answer:

450 ÷ 7.50 = t (tickets sold for Tuesday)

Step-by-step explanation:

this is simple 4th grade division...

4 0

2 years ago

Can someone help me please

mojhsa [17]

Answer:

Your answer is B

Step-by-step explanation:

There are 3 kids ages 9-10, so that's the first 3.

There are 10 kids ages 10-11, so that's the second 10.

There are 6 kids ages 11-12, so that's the third 6.

add those kids up and you get 19

3 0

2 years ago

Read 2 more answers

Which expression models the phrase “Wally mowed two more lawns than he mowed last week”?

VLD [36.1K]

Answer: n+2

Two lawns more than last week so two more than something with n being that something is; n+2

4 0

3 years ago

Read 2 more answers

A polyhedron has 24 edges and 12 vertices. how many faces does it have​

A polyhedron has 24 edges and 12 vertices. how many faces does it have