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
Thepotemich [5.8K]
3 years ago
8

In circle C the measure of arc AB=72. Find the measure of angle BCD

Mathematics
2 answers:
Olenka [21]3 years ago
8 0

Answer:

When we have a circle of radius R, we have that the total perimeter of the circle is equal to:

P = 2*pi*R

Now, if we have an arc, this is only a section of the total perimeter, the measure of the arc is equal to:

A = (θ/2*pi)*2*pi*R = θ*R

You can see that when θ = 2*pi, the term in the left is equal to 1 and we have the complete perimeter.

Now, we have that the measure of the arc AB = 72, then we can find the angle as:

A = 72 = θ*R

then we solve this for theta:

72/R = θ

Where you can see that as bigger is the radius of the circle, smaller is the value of theta.

Remember that this equation works with angles in radians.

nydimaria [60]3 years ago
3 0

Answer:

108

Step-by-step explanation:

the answer would be 108. 72+108=180, and the circumference of a circle is 360. the other half equals 180, so 180+180=360.

Sorry if i'm bad at explaining...

You might be interested in
O que significa 1E+76 ?????
kenny6666 [7]

Answer:

e means error at least when the number is higher than the computor can calculate or it is just a variable

Step-by-step explanation:

4 0
3 years ago
Evaluate 16 • 1 + 4(18 ÷ 2 – 9)
Hunter-Best [27]

Answer:

16

Step-by-step explanation:

I did this in 7th grade and had the answer but I don't know the steps

8 0
2 years ago
Read 2 more answers
A water tank holds 486 gallons but leaking at a rate 4 gallons per week. A second water tank holds 648 gallons but is leaking at
notka56 [123]

The first tank contains

486 gal - (4 gal/week) <em>t</em>

gal of water after <em>t</em> weeks.

Similarly, the second tank contains

648 gal - (7 gal/week) <em>t</em>

gal of water.

The tanks hold the same amount of water when these two amounts are equal:

486 gal - (4 gal/week) <em>t</em> = 648 gal - (7 gal/week) <em>t</em>

(7 gal/week) <em>t</em> - (4 gal/week) <em>t</em> = 648 gal - 486 gal

(3 gal/week) <em>t</em> = 162 gal

<em>t</em> = (162 gal) / (3 gal/week)

<em>t</em> = 54 weeks

6 0
3 years ago
Can you pls help? This is a multiple choice, and including the answer can u add a one sentence explanation on why? Tysm! I’ll gi
prohojiy [21]

Answer:

A and D

Step-by-step explanation:

5 0
3 years ago
Olga flips 2 fair coins. What is the probability of obtaining a different result on each coin?
erica [24]

Answer:

2/4

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • In circle C the measure of arc AB=72. Find the measure of angle BCD
    8·2 answers
  • A florist shop represents its first month’s sales with the equation y=168x+8, where x represents the number of days that the sho
    13·2 answers
  • What is the sum of 2/7 and 5/6?
    7·1 answer
  • Kilingrams 4,000鈩arma
    6·1 answer
  • Can you help me find the answer to this problem?
    11·1 answer
  • 5(x – 10) = 30 – 15x x = 1
    7·2 answers
  • Write 2.75 as a mixed number and as an improper fraction.<br> Write your answers in simplest form.
    8·1 answer
  • Graph the line that passes through the two points.<br><br> (−3/2,−3/2), (3/2, 3/2)
    6·2 answers
  • Lily is making a snack mix for her class.
    5·1 answer
  • Can you help please help
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!