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
Lynna [10]
3 years ago
14

Given: BD is a diameter m 1 = 100° m BC= 30° m ADB= 160 280 330

Mathematics
2 answers:
ladessa [460]3 years ago
7 0

Answer with explanation:

Given

m∠1=100°

m \widehat{BC}=30 ^{\circ}

To Find:---m∠A D B

Solution

In Δ A OD

Represent the center of circle by O.

→ m∠1=100°

→OD=O A----------Radii of Circle

→∠ADO=∠D A O--------If opposite sides are equal angle opposite to them are equal.

In ΔA OD, Using Angle Sum property of Triangle

→∠ADO+∠D A O+∠A OD=180°

→2 ∠ADO+100° =180°-------------------[∠ADO=∠D A O]

→2∠ADO=180° -100°

→2∠ADO=80°

Dividing both sides by , 2 we get

⇒∠ADO=40°

⇒⇒⇒∠A DB=40°

≡⇒If you are asking about

m \widehat{ADB}=180 ^{\circ}

Because Angle in a semicircle is Right Angle.Diameter B D divides the circle into two equal arc measure of each arc being 180 degree.

⇒⇒If you are asking about Angle made by Major arc ADB, then

m \widehat{ADB}=\angle AOD + \widehat{BOD}\\\\=100 ^{\circ}+180 ^{\circ}=280 ^{\circ}

Option B

Alex3 years ago
6 0

Answer:

280

Step-by-step explanation:

<1=100 <4=150 <3=30

mADB=100+150+30=280

You might be interested in
What is the solution to the following system?
notsponge [240]

Answer:

the answer is c (2,1,0)

Step-by-step explanation:

4 0
3 years ago
Label the slope and y intercept ​
astra-53 [7]

Answer:

Slope is 5 and y intersept is 5over6

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
3/8 as a decimal is ??
KatRina [158]

Answer:

0.375

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
on a map 1 inch equals 25 miles two cites are 5 inches apart on the map what is the actual distance between the cities
jeka57 [31]
1 inch = 25 miles so 5inches x 25 = 125 miles
6 0
3 years ago
Need help with this pls
diamong [38]
G and b are the answers I think I will get more answers if I were you
4 0
2 years ago
Other questions:
  • Finding out how many events can someone attend with the cost of $36
    5·1 answer
  • Which function is represented by the graph?<br> D|-x+ 31<br> D - x + 31<br> -|x1 + 3<br> |-x] + 3
    14·1 answer
  • a line that passes through the point (–1, 3) has a slope of 2. find another point on the line. a. (–3, 2) b. (0, 5) c. (1, 5) d.
    12·1 answer
  • Jamal ran 7 kilometers, sprinted 400 meters, and climbed bleachers for a distance of 1.6 kilometers during track practice. How m
    9·2 answers
  • Geometry sucks So Help?
    14·2 answers
  • Which is a better buy, 3 pounds for $8.31 or 5 pounds for $12.95?
    11·1 answer
  • What is the radical expression of (3^1/4)^6
    11·1 answer
  • Please help me with these questions. thank you.
    9·1 answer
  • Hi many kilometers to 2000 meters
    12·2 answers
  • HELP NO LINKS OR TROLLING
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!