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
vichka [17]
3 years ago
8

the measure of the seven angles in a nonagon measure 138, 154, 145, 132, 128, 147 and 130. if the two remaining angles are equal

in measure, what is the measure of each angle
Mathematics
1 answer:
Juliette [100K]3 years ago
7 0

To find the missing two angle measures, you will need to know that the sum of all nine angles in a nonagon equal 1260 degrees.


Knowing this, you can use this total to find the missing congruent angles.


Start with the total and subtract what you know. Divide what is left by two to get each angle measure.


1. 1260 - ( 138 + 154 + 145 + 132 + 128 + 147 + 130) = 286

2. 286/2 = 143


The missing angles are each 143 degrees.


You might be interested in
On Saturday, 90 people visited a museum, Tickets to the museum cost
AveGali [126]

Answer:

64 adult tickets were sold

Step-by-step explanation:

Let a = adult tickets sold

c = child tickets sold

a+c = 90  since there were 90 tickets sold

12a+7c = 950  since the amount of money collect is 950

c = 90-a

Substitute this into the second equation

12a +7( 90-a) = 950

Distribute

12a + 630-7a = 950

Combine like terms

5a +630 = 950

Subtract 630 from each side

5a = 950-630

5a = 320

Divide by 5

5a/5 = 320/5

a =64

64 adult tickets were sold

3 0
2 years ago
Exponential expression please help
Lelechka [254]

{3}^{ - 2}  =  \frac{1}{9}
8 0
3 years ago
Read 2 more answers
What is 3/4 divided by 3/12
ziro4ka [17]
3/4 divided by 3/12 is 3 
7 0
3 years ago
PLEASE HELP IM STRUGGLING!!
dem82 [27]
Use the tangent-chord theorem:
The included chord-tangent angle is half the size of the intercepted arc.

The intercepted arc is "c".
The included chord-tangent-angle is the supplement of 110=70 degrees.
Therefore from the tangent-chord theorem, 70 degrees = half the size of arc "c"
=>
arc "c" = 2*intercepted angle = 2*70 degrees = 140 degrees.

3 0
3 years ago
What is the nearest whole percent of 40
vova2212 [387]
I think it’s 40 i’m not sure tho
8 0
2 years ago
Read 2 more answers
Other questions:
  • How to solve for the slope
    5·1 answer
  • 0.117647 round to the nearest tenth
    15·1 answer
  • Please help me with this!!!!
    13·1 answer
  • A distrubutor wants to make 1,000 pounds of trail mix that is 8% raisins. He will use a mix that is 5% raisins and a mix that is
    9·2 answers
  • Para la clase de Ciencias cada 1 de los estudiantes puso a germinar un grano de frijol
    12·1 answer
  • A computer company can inspect 12 laptops in 8 hours. what's the ratio
    14·2 answers
  • How would I simplify <br> (3 sqrt -5 + 2)(4 sqrt -12 – 1)
    14·2 answers
  • Which equation can be used to solve for x in the following diagram?
    12·2 answers
  • Please help is for today!
    5·1 answer
  • Solve the reciprocal<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7Bx%7D%20" id="TexFormula1" title=" \frac{1}{x} " al
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!