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
Xelga [282]
3 years ago
7

What is the measure of def 78° PLEASE HELP

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
7 0

Answer:

The measure of arc DEF is 204°

B is correct

Step-by-step explanation:

In a circle center at O.

∠DOF and ∠DEF are lie on same base but ∠DOF at center and ∠DEF on circle.

Thus, ∠DOF = 2 ∠DEF

minor ∠DOF = 2 x 78 = 156°

We need to find arc DEF.

DEF is central angle of major∠DOF

major∠DOF + minor ∠DOF = 360°     (Complete angle at center)

            major∠DOF  +  156° = 360°

                         major∠DOF = 204°

major∠DOF is arc DEF.

Hence, The measure of arc DEF is 204°

You might be interested in
C Betty rearranged the movies on her shelving unit after a few days. She placed equal numbers of movies on the bottom 3 shelves,
mixas84 [53]

There are total 53 movies on the shelving unit

Step-by-step explanation:

<u>DATA</u>

Equal movies on the bottom 3 shelves: 3x

10 movies on each of the top 2 shelves = 2*10 = 20

<u>Equation:</u>

3x + 20

<u>Question:</u>

Number of movies on the shelving unit if 11 movies are on each bottom 3 shelves: x = 11

<u>Solution:</u>

3x + 20

3(11) + 20 = 33 + 20 = 53

Therefore, there are total 53 movies on the shelving unit; 20 on the top 2 shelves and 33 on the bottom 3 shelves altogether.

Keywords: equation

Learn more about equation at

  • brainly.com/question/1284310
  • brainly.com/question/13168205

#LearnwithBrainly

5 0
3 years ago
Idk, please help<br>im guessing its b
sergij07 [2.7K]
It’s A. 10 feet is 10/3 yards and if you multiply that by 4 you get 40/3. Simplify the fraction and you get 13 1/3
3 0
3 years ago
I already kknow this imao
valentina_108 [34]

Answer:

like, at least 2

Step-by-step explanation:

math hard.

7 0
2 years ago
Read 2 more answers
10-19+5 Regroup the integers and add and subtract
ale4655 [162]

Answer:

  • -4.

Step-by-step explanation:

<u>Solve left to right →:</u>

  • 10 - 19 + 5
  • = (10 - 19) + 5
  • = -9 + 5
  • = -4.

Nothing else to say.

<h2>Your answer is -4.</h2>
7 0
2 years ago
Read 2 more answers
I need help with this!!!!
Jlenok [28]

Answer:

3. B)

4. A)

5. C)

6. D)

.................

8 0
3 years ago
Other questions:
  • List down all the prime numbers which are factors of 30
    12·2 answers
  • 8(4-x)=7x+2<br> What is x?
    14·2 answers
  • Will a fraction increase or decrease and by what percent if its numerator is increased by 20% and its denominator is increased b
    13·1 answer
  • Jazmyn is baking and selling cupcakes for $15 per dozen. She would like to make more than $120 in cupcake sales. Which number li
    15·1 answer
  • What is the measure of &lt;x​
    5·2 answers
  • Barb drew a line through the origin and point
    6·1 answer
  • Solve.<br> Five times a number is 110 less than 7 times the number. Find the number.
    5·1 answer
  • Which is a solution to the inequality five less than a number is at most 12? 15, 16, 17, 18
    5·1 answer
  • Rosa's family wants to switch cell phone plans. Cloud Line Cell Service is offering a one-time discount of $25 for families that
    8·1 answer
  • Solve: 4x &lt; -16<br><br> A<br> B<br> C<br> D<br> X&gt;4<br> X&gt;12<br> X&lt;-4<br> X &lt;-20
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!