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
meriva
3 years ago
5

How many sides do 1980 have

Mathematics
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

13 sides

Step-by-step explanation:

1980 = (n − 2)×180         Formula for number of sides

n − 2 = 1980/180            Divide both sides by 180

n - 2 = 11            

  + 2   + 2                       Add 2 to both sides

n = 13

You might be interested in
Simplify x^3/x? need help been stuck on this question forever
BlackZzzverrR [31]

x^3/x

= x^(3 - 1)

= x^2

Answer

x^2

8 0
3 years ago
Read 2 more answers
Given: △CGF ,CG=GF=CF=and, KOPS is a square inside this triangle with one side on CF and its two vertices on CG and GF
shepuryov [24]

Answer:

  AKPOS/ACGF = 28√3 -48 ≈ 0.497423

Step-by-step explanation:

Let's assume the square is a unit square. Then the height of the triangle is ...

  1 +(√3)/2 = h

and half the base of the triangle is ...

  h/√3 = (√3)/3 +1/2 = b/2

The area of the triangle is the product of these:

  A = (1/2)bh

  = (2 +√3)/2 × (3 +2√3)/6

  = (6 +3√3 +4√3 +6)/12 = (12 +7√3)/12

So, the ratio of the area of the square to that of the triangle is the inverse of this, or ...

  (square area)/(triangle area) = 12/(12+7√3)

  (square area)/(triangle area) = 28√3 -48

8 0
3 years ago
Lowest fraction using common term<br><br> 28/35
rjkz [21]
28/7=4
35/7=5
4/5
A: 4/5
3 0
4 years ago
More help need 50 points
Sergio039 [100]
50p-40p+25-p
9p+25 is the answer.
8 0
2 years ago
Read 2 more answers
3.9 + x = -8 what is x
jarptica [38.1K]

Answer:

x=-11.9

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • The functions f(x) and g(x) are graphed.
    6·2 answers
  • HELP PLZ ASAP I BEG U
    15·1 answer
  • Evaluate a + b for a = 2 and b = 3.<br> 01
    11·1 answer
  • How many solutions does the equaltion 7x + 3x - 8 = 2(5x - 4) have ? explain.
    5·1 answer
  • Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced before the second card is select
    6·2 answers
  • Which set of rational numbers is arranged from least to greatest?
    11·2 answers
  • PLZZZ help with this its pretty simple!
    11·2 answers
  • A water tank contains 12 1/2 liters of water. Two- fifth of it was consumed. How much of it was left?​
    11·1 answer
  • 7 1/8 - 5 2/3 = <br><br> Whois I’ve answer to this problem in fraction form? Step by step please?
    7·1 answer
  • Mrs. Galicia has a cupcake company. The amount of money earned is represented by
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!