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
Evaluate 3^2 + (5 − 2) ⋅ 4 − 6 over 3.<br> 19<br> 16<br> 46<br> 24
Ludmilka [50]
3^2 +(5-2)* 4-6/3
Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction
3^2+3*4- 6/3
9+3*4- 6/3
9+12- 6/3
9+12-2
9+10
19
So your answer is 19.
8 0
3 years ago
Select all equations that have infinitely many solutions.
9966 [12]

Answer:

C And D

Step-by-step explanation:

HAVE A GREAT DAY!

6 0
3 years ago
I Only Need #9 Not 10
Minchanka [31]

Answer:

6

Step-by-step explanation:

Remember the last question? to find circumference you have to multiply the diameter by 3.14? well same here except you divide the circumference by 3.14 to get the diameter. so divide 18.84 ÷ 3.14 = 6

~R3V0

d= \frac{C}{\pi }

C = \pi d (pi times d)

5 0
3 years ago
_ 1)
Alina [70]

Answer: A)

Step-by-step explanation: If You just look at the numbers you can single out which one is correct

3 0
3 years ago
Brian invests £1300 into his bank account.
raketka [301]

Answer:

£1690

Step-by-step explanation:

Amount invested by Brian = £1300

rate of simple interest = 10%

To find money Brian will have after three years

He will have amount invested in bank and interest earned in three years from that amount.

Simple interest for any principal amount p is given by

SI = P*R * T /100

where SI  is simple interest earned

T is time period for which simple interest is earned

R is rate of interest

Substituting value of P , R and T we have

SI = 1300*10* 3 /100 = 390

Therefor interest earned will be £390

Total money with Brian after three years = principal amount invested + interest earned in 3 years

= £1300 + £390 = £1690

3 0
3 years ago
Other questions:
  • The gross income, in dollars, that a company makes from selling x items can be modeled by the expression 3x2 + 2x +4. It costs t
    9·1 answer
  • What is the simplest form of the expression?
    8·1 answer
  • A number n minus 3 is at least –5.
    11·1 answer
  • Solve 7x – 5x – 3 = x 4.
    10·1 answer
  • There are two fields whose total area is 56 square yards. One field produces grain at the rateof34bushel per square yard; the ot
    11·1 answer
  • What is the solution of the equation 1/6 x =12
    7·1 answer
  • Bored? Get your brain exercised with a TRICKY MATH question!
    14·1 answer
  • The sum of two numbers is 24.The difference of their square is 144.what are the two numbers?​
    9·1 answer
  • Hey cutie i need help :(
    5·1 answer
  • What is 1.70 times 8.5
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!