1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepan [7]
3 years ago
10

If a polyhedron has 8 faces and 10 vertices, find the number of edges it has.​

Mathematics
1 answer:
marshall27 [118]3 years ago
7 0

Given that,

The polyhedron has 8 faces and 8 vertices.

From Euler's formula,

No. of edges, E=F+V−2

Substituting the values,

⇒E=8+8−2

⇒E=14

You might be interested in
Which of the following fractions would convert into a repeating decimal
ozzi

Answer: \frac{2}{9}

Step-by-step explanation: It is 2/9 because 2/9 converts to 0.222222222...

Hope it helps!

7 0
3 years ago
What is the sum of the interior angles of the figure shown
KonstantinChe [14]

Answer:

C

Step-by-step explanation:

The sum of the interior angles of a square = 360° ( 4 right angles )

The sum of the interior angles of a triangle = 180°

Then sum of interior angles of the figure is

sum = 180° + 180° + 360° = 720° → C

6 0
3 years ago
Rectangle MNOP is shown below. Aiden argues that MNQ is congruent to POQ. What triangle congruence criteria proves that MNQ is c
Katena32 [7]

Answer:

Δ MNQ ≅ Δ POQ ( BY Angle Angle Side)

Step-by-step explanation:

Given:

m∠NQM = 40°

m∠NQO = 100°

MNOP is a Rectangle

So we can say that:

Property of rectangle:

All angles of rectangle are 90°

Opposite sides of Rectangle are equal and parallel to each other

MN ≅ PO (opposite side of rectangle)

∠NMQ ≅ ∠OPQ (Both angles are 90°)

Now By Straight Angle property

m∠NQM + m∠NQO + m∠OQP = 180° (angles of straight line)

Substituting the values we get;

40° + 100° + m∠OQP = 180°

140° + m∠OQP = 180°

m∠OQP = 180° - 140° = 40°

So m∠OQP = m∠NQM = 40°

m∠OQP ≅ m∠NQM (Equals angles are congruent to each other)

Hence In Δ MNQ and Δ POQ

m∠OQP ≅ m∠NQM

∠NMQ ≅ ∠OPQ (Both angles are 90°)

MN ≅ PO (opposite side of rectangle)

Δ MNQ ≅ Δ POQ ( BY Angle Angle Side)

Hence Proved...

7 0
3 years ago
ms salinas is packing lunches for a field trip. She is placing 15 sack lunches in each of 3 ice chests. Each sack lunch contains
olganol [36]

Answer:18

Step-by-step explanation:

Because 40% of 45 is 18

3 0
3 years ago
How do you solve -7-x=24
Airida [17]

Answer:

-31

Step-by-step explanation:

you have to get the variable on one side alone. so you would add the -7 to the 24 then divide by -1 because you have a -x when adding the -7 to the 24

3 0
3 years ago
Other questions:
  • The cost for three copies of a book is $38.85. Estimate the cost for one book. Do you think your estimate is higher or lower? Ex
    5·1 answer
  • PLEASE HELP!!!
    5·2 answers
  • What is the rate of change for 8+ y = 2x
    7·1 answer
  • Listed below are amounts? (in millions of? dollars) collected from parking meters by a security service company and other compan
    5·1 answer
  • Find the area of the shape below.
    11·1 answer
  • The chess club members bought 6 tickets to a tournament for $15.How much would they have paid if all 9 members wanted to go? Sho
    8·2 answers
  • In ΔEFG, the measure of ∠G=90°, GF = 33, FE = 65, and EG = 56. What ratio represents the sine of ∠F?
    9·1 answer
  • Which best explains why all equilateral triangles are similar?
    9·1 answer
  • Click the digit in the ten billions place.<br> 3 0,2 4 2,3 8 6,6 5 1
    9·1 answer
  • How many different committees can be formed from 8 teachers and 39 students if the committee consists of 2 teachers and 4 studen
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!